feat: inital support for x86_64-linux

I must confess to not understanding quite how all this works, but this seems to solve the problem of aarch64 fetching the x86-64 binary and vice-versa.

Reviewed-on: #2
Reviewed-by: Jake Hamilton <jake.hamilton@hey.com>
Co-authored-by: Steve Dodd <steved424@gmail.com>
Co-committed-by: Steve Dodd <steved424@gmail.com>

README.md

@@ -25,7 +25,8 @@ may collaborate.
 
 ## Experiments
 
-| Name                           | Phase     | Description                                                                |
-| ------------------------------ | --------- | -------------------------------------------------------------------------- |
-| [Aux Lib](./lib)               | Iteration | A library of common functions used in the Aux ecosystem.                   |
-| [Aux Foundation](./foundation) | Iteration | Foundational packages which allow for bootstrapping a greater package set. |
+| Name                           | Phase     | Description                                                                          |
+| ------------------------------ | --------- | ------------------------------------------------------------------------------------ |
+| [Aux Lib](./lib)               | Iteration | A library of common functions used in the Aux ecosystem.                             |
+| [Aux Foundation](./foundation) | Iteration | Foundational packages which allow for bootstrapping a greater package set.           |
+| [Aux Tidepool](./tidepool)     | Idea      | An initial package set built on top of Aux Foundation using Aux Lib's module system. |

foundation/src/stages/stage0/phases/phase00.nix

@@ -91,9 +91,9 @@ in {
 
       hash = lib.modules.overrides.default (
         if system == "x86_64-linux"
-        then "sha256-XTPsoKeI6wTZAF0UwEJPzuHelWOJe//wXg4HYO0dEJo="
-        else if system == "aarch64-linux"
         then "sha256-RCgK9oZRDQUiWLVkcIBSR2HeoB+Bh0czthrpjFEkCaY="
+        else if system == "aarch64-linux"
+        then "sha256-XTPsoKeI6wTZAF0UwEJPzuHelWOJe//wXg4HYO0dEJo="
         else if system == "i686-linux"
         then "sha256-QU3RPGy51W7M2xnfFY1IqruKzusrSLU+L190ztN6JW8="
         else null

foundation/src/stages/stage2/bash/default.nix

@@ -79,6 +79,7 @@ in {
         deps.build.host = [
           stage1.gcc.package
           stage1.musl.package
+          stage1.coreutils.package
           stage1.binutils.package
           stage1.gnumake.package
           stage1.gnupatch.package
@@ -113,6 +114,7 @@ in {
           make -j $NIX_BUILD_CORES install-strip
           rm $out/bin/bashbug
 
+          ln -s $out/bin/bash $out/bin/sh
         '';
       };
     };

lib/src/dag/default.nix

@@ -58,6 +58,10 @@ lib: {
         else sorted;
     };
 
+    apply = {
+      # defaults = graph: defaults:
+    };
+
     ## Map over the entries in a DAG and modify their values.
     ##
     ## @type (String -> a -> b) -> Dag a -> Dag b

lib/src/modules/default.nix

@@ -317,6 +317,20 @@ lib: {
       vm = lib.modules.override 10;
     };
 
+    ## Create alias definitions for a given option.
+    ##
+    ## @type Option -> Attrs
+    alias = lib.modules.aliasWith lib.fp.id;
+
+    ## Create alias definitions for a given option.
+    ##
+    ## @type (Attrs -> Attrs) -> Option -> Attrs
+    aliasWith = f: option: let
+      exists = lib.types.is "option" option && option.isDefined;
+      value = f (lib.modules.merge option.definitions);
+    in
+      lib.modules.when exists value;
+
     ## Combine multiple modules together.
     ##
     ## @type List String -> List Module -> { matched :: Attrs, unmatched :: List Definition }
@@ -344,7 +358,7 @@ lib: {
               in
                 if builtins.isAttrs subtree
                 then builtins.mapAttrs (name: f module) subtree
-                else builtins.throw "Value for `${builtins.concatStringsSep "." prefix} is of type `${builtins.typeOf subtree}` but an attribute set was expected."
+                else builtins.throw "Value for `${builtins.concatStringsSep "." prefix}` is of type `${builtins.typeOf subtree}` but an attribute set was expected."
             )
             modules);
 

lib/src/modules/default.test.nix

@@ -454,5 +454,262 @@ in {
       };
     in
       evaluated.config.aux.x.message == expected;
+
+    "submodules without shorthand" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodules.of {
+                  shorthand = false;
+                  modules = [
+                    {
+                      options.message = lib.options.create {
+                        type = lib.types.string;
+                      };
+                    }
+                  ];
+                };
+              };
+            };
+            config = {
+              aux = {
+                options = {
+                  message2 = lib.options.create {
+                    type = lib.types.string;
+                  };
+                };
+
+                config = {
+                  message = expected;
+                  message2 = expected;
+                };
+              };
+            };
+          }
+        ];
+      };
+    in
+      evaluated.config.aux.message == evaluated.config.aux.message2;
+
+    "function submodules" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodules.of {
+                  shorthand = false;
+                  modules = [
+                    {
+                      options.message = lib.options.create {
+                        type = lib.types.string;
+                      };
+                    }
+                  ];
+                };
+              };
+            };
+            config = {
+              aux = args: {
+                config.message = expected;
+              };
+            };
+          }
+        ];
+      };
+    in
+      evaluated.config.aux.message == expected;
+
+    "merges submodules" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodules.of {
+                  shorthand = false;
+                  modules = [
+                    {
+                      options.message = lib.options.create {
+                        type = lib.types.string;
+                      };
+                    }
+                  ];
+                };
+              };
+            };
+            config = {
+              aux = args: {
+                options.message2 = lib.options.create {
+                  type = lib.types.string;
+                };
+
+                config.message = expected;
+              };
+            };
+          }
+          {
+            config = {
+              aux.config.message2 = expected;
+            };
+          }
+        ];
+      };
+    in
+      evaluated.config.aux.message == evaluated.config.aux.message2;
+
+    "flexible shorthand" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodules.of {
+                  shorthand = true;
+                  modules = [
+                    {
+                      options.message = lib.options.create {
+                        type = lib.types.string;
+                      };
+                    }
+                  ];
+                };
+              };
+            };
+            config = {
+              aux = args: {
+                options.message2 = lib.options.create {
+                  type = lib.types.string;
+                };
+
+                config.message = expected;
+              };
+            };
+          }
+          {
+            config = {
+              aux.message2 = expected;
+            };
+          }
+        ];
+      };
+    in
+      evaluated.config.aux.message == evaluated.config.aux.message2;
+
+    "base level submodule" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodule {
+                  options.message = lib.options.create {
+                    type = lib.types.string;
+                  };
+                };
+              };
+            };
+            config = {
+              aux = args: {
+                options.message2 = lib.options.create {
+                  type = lib.types.string;
+                };
+
+                config.message = expected;
+              };
+            };
+          }
+          {
+            config = {
+              aux.message2 = expected;
+            };
+          }
+        ];
+      };
+    in
+      evaluated.config.aux.message == evaluated.config.aux.message2;
+
+    "base level submodule (freeform)" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodule {
+                  freeform = lib.types.any;
+
+                  options.message = lib.options.create {
+                    type = lib.types.string;
+                  };
+                };
+              };
+            };
+            config = {
+              aux = args: {
+                options.message2 = lib.options.create {
+                  type = lib.types.string;
+                };
+
+                config.message = expected;
+              };
+            };
+          }
+          {
+            config = {
+              aux.exists = true;
+              aux.message2 = expected;
+            };
+          }
+        ];
+      };
+    in
+      (evaluated.config.aux.message == evaluated.config.aux.message2)
+      && evaluated.config.aux.exists;
+
+    "nested submodules" = let
+      expected = "Hello, World!";
+      evaluated = lib.modules.run {
+        modules = [
+          {
+            options = {
+              aux = lib.options.create {
+                type = lib.types.submodule {
+                  freeform = lib.types.any;
+
+                  options.message = lib.options.create {
+                    type = lib.types.string;
+                  };
+                };
+              };
+            };
+            config = {
+              aux = args: {
+                options.message2 = lib.options.create {
+                  type = lib.types.string;
+                };
+
+                config.message = expected;
+              };
+            };
+          }
+          {
+            config = {
+              aux.exists = true;
+              aux.message2 = expected;
+            };
+          }
+        ];
+      };
+    in
+      (evaluated.config.aux.message == evaluated.config.aux.message2)
+      && evaluated.config.aux.exists;
   };
 }

lib/src/options/default.nix

@@ -94,7 +94,7 @@ lib: {
           typeSet = lib.attrs.when ((shared "type") && isTypeMergeable) {
             type = mergedType;
           };
-          files = builtins.map lib.modules.getFiles result.declarations;
+          files = result.declarations;
           serializedFiles = builtins.concatStringsSep " and " files;
           getSubModules = option.options.type.getSubModules or null;
           submodules =

lib/src/types/default.nix

@@ -360,6 +360,19 @@ lib: {
     ## @type Attrs
     port = lib.types.ints.u16;
 
+    ## A type that allows a string value specifying a version number.
+    ##
+    ## @type Attrs
+    version = lib.types.create {
+      name = "Version";
+      description = "version";
+      check = value: let
+        parts = builtins.splitVersion value;
+      in
+        builtins.isString value && builtins.length parts > 0;
+      merge = lib.options.merge.equal;
+    };
+
     ## A type that allows a string value. The merged definitions must all be
     ## the same.
     ##
@@ -743,19 +756,39 @@ lib: {
       ## with helpers like `lib.types.attrs.of` in order to produce more complex,
       ## dynamic types.
       ##
-      ## @type { modules :: List Module, args? :: Attrs, description? :: String | Null } -> Attrs
+      ## @type { modules :: List Module, args? :: Attrs, description? :: String | Null, shorthand? :: Bool } -> Attrs
       of = settings @ {
         modules,
         args ? {},
         description ? null,
+        shorthand ? true,
       }: let
         getModules = builtins.map (
           definition:
-            if builtins.isAttrs definition
-            then {
-              __file__ = definition.__file__;
-              config = definition.value;
-            }
+            if shorthand && builtins.isAttrs definition.value
+            then let
+              # TODO: Figure out if we can apply additional attributes to the generated module.
+              # Currently this causes issues to do with redefined options.
+              rest =
+                builtins.removeAttrs
+                (lib.attrs.filter (name: value: builtins.elem name lib.modules.VALID_KEYS) definition.value)
+                ["freeform"];
+            in
+              if definition.value ? config
+              then
+                rest
+                // {
+                  __file__ = definition.__file__;
+                  config = definition.value.config;
+                }
+              else let
+                config = builtins.removeAttrs definition.value lib.modules.VALID_KEYS;
+              in
+                rest
+                // {
+                  __file__ = definition.__file__;
+                  config = config;
+                }
             else {
               __file__ = definition.__file__;
               includes = [definition.value];
@@ -803,7 +836,7 @@ lib: {
           getSubModules = modules;
           withSubModules = modules:
             lib.types.submodules.of {
-              inherit args description modules;
+              inherit args description modules shorthand;
             };
           children = lib.attrs.when (freeform != null) {
             inherit freeform;
@@ -813,7 +846,7 @@ lib: {
             // {
               type = lib.types.submodules.of;
               payload = {
-                inherit modules args description;
+                inherit modules args description shorthand;
               };
               merge = x: y: {
                 modules = x.modules ++ y.modules;
@@ -1038,72 +1071,72 @@ lib: {
             inherit initial final;
           };
         };
-  };
 
-  dag = {
-    ## Create a type that allows a DAG (Directed Acyclic Graph) of a given type.
-    ##
-    ## @type Attrs -> Attrs
-    of = type: let
-      resolved = lib.types.attrs.of (lib.types.dag.entry type);
-    in
-      lib.types.create {
-        name = "Dag";
-        description = "Dag of ${type.description}";
-        check = resolved.check;
-        merge = resolved.merge;
-        fallback = resolved.fallback;
-        getSubOptions = prefix: type.getSubOptions (prefix ++ ["<name>"]);
-        getSubModules = type.getSubModules;
-        withSubModules = modules: lib.types.dag.of (type.withSubModules modules);
-        functor = lib.types.functor "dag.of" // {wrapped = type;};
-        children = {
-          element = type;
-          resolved = resolved;
-        };
-      };
-
-    ## Create a type that allows a DAG entry of a given type.
-    ##
-    ## @type Attrs -> Attrs
-    entry = type: let
-      submodule = lib.types.submodule ({name}: {
-        options = {
-          value = lib.options.create {
-            type = type;
-          };
-          before = lib.options.create {
-            type = lib.types.list.of lib.types.string;
-          };
-          after = lib.options.create {
-            type = lib.types.list.of lib.types.string;
-          };
-        };
-      });
-      normalize = definition: let
-        value =
-          if definition ? priority
-          then lib.modules.order definition.priority definition.value
-          else definition.value;
+    dag = {
+      ## Create a type that allows a DAG (Directed Acyclic Graph) of a given type.
+      ##
+      ## @type Attrs -> Attrs
+      of = type: let
+        resolved = lib.types.attrs.of (lib.types.dag.entry type);
       in
-        if lib.dag.validate.entry definition.value
-        then definition.value
-        else lib.dag.entry.anywhere value;
-    in
-      lib.types.create {
-        name = "DagEntry";
-        description = "DagEntry (${type.description})";
-        merge = location: definitions:
-          submodule.merge
-          location
-          (
-            builtins.map
-            (definition: {
-              __file__ = definition.__file__;
-              value = normalize definition;
-            })
-            definitions
-          );
-      };
+        lib.types.create {
+          name = "Dag";
+          description = "Dag of ${type.description}";
+          check = resolved.check;
+          merge = resolved.merge;
+          fallback = resolved.fallback;
+          getSubOptions = prefix: type.getSubOptions (prefix ++ ["<name>"]);
+          getSubModules = type.getSubModules;
+          withSubModules = modules: lib.types.dag.of (type.withSubModules modules);
+          functor = lib.types.functor "dag.of" // {wrapped = type;};
+          children = {
+            element = type;
+            resolved = resolved;
+          };
+        };
+
+      ## Create a type that allows a DAG entry of a given type.
+      ##
+      ## @type Attrs -> Attrs
+      entry = type: let
+        submodule = lib.types.submodule ({name}: {
+          options = {
+            value = lib.options.create {
+              type = type;
+            };
+            before = lib.options.create {
+              type = lib.types.list.of lib.types.string;
+            };
+            after = lib.options.create {
+              type = lib.types.list.of lib.types.string;
+            };
+          };
+        });
+        normalize = definition: let
+          value =
+            if definition ? priority
+            then lib.modules.order definition.priority definition.value
+            else definition.value;
+        in
+          if lib.dag.validate.entry definition.value
+          then definition.value
+          else lib.dag.entry.anywhere value;
+      in
+        lib.types.create {
+          name = "DagEntry";
+          description = "DagEntry (${type.description})";
+          merge = location: definitions:
+            submodule.merge
+            location
+            (
+              builtins.map
+              (definition: {
+                __file__ = definition.__file__;
+                value = normalize definition;
+              })
+              definitions
+            );
+        };
+    };
   };
 }

potluck/default.nix

@@ -1,33 +0,0 @@
-{
-  lib ? import ./../lib,
-  foundation ? import ./../foundation {system = "i686-linux";},
-}: let
-  modules = import ./src/modules.nix;
-
-  result = lib.modules.run {
-    modules =
-      (builtins.attrValues modules)
-      ++ [
-        ./src/export.nix
-        {
-          __file__ = "broken";
-
-          # options.foundation = lib.options.create {
-          #   type = lib.types.attrs.of lib.types.derivation;
-          # };
-
-          # config.foundation = foundation;
-          config.packages.foundation =
-            builtins.mapAttrs (name: package: {
-              name = package.name;
-
-              inherit package;
-
-              meta = package.meta;
-            })
-            foundation;
-        }
-      ];
-  };
-in
-  result.config

potluck/src/export.nix

@@ -1,14 +0,0 @@
-# This file handles creating all of the exports for this project and is not
-# exported itself.
-{
-  lib,
-  config,
-}: let
-in {
-  config = {
-    exports = {
-      lib = config.lib;
-      modules = import ./modules.nix;
-    };
-  };
-}

potluck/src/exports/packages.nix

@@ -1,22 +0,0 @@
-{
-  config,
-  lib,
-}: let
-  lib' = config.lib;
-in {
-  options = {
-    exports.packages = lib.options.create {
-      default.value = {};
-    };
-
-    exported.packages = lib.options.create {
-      default.value = {};
-    };
-  };
-
-  config = {
-    exported.packages = {
-      # i686-linux = config.packages.foundation;
-    };
-  };
-}

potluck/src/lib/types.nix

@@ -1,471 +0,0 @@
-{
-  lib,
-  config,
-}: let
-  lib' = config.lib;
-in {
-  config = {
-    lib.types = {
-      license = let
-        type = lib.types.submodule ({config}: {
-          options = {
-            name = {
-              full = lib.options.create {
-                type = lib.types.string;
-                description = "The full name of the license.";
-              };
-
-              short = lib.options.create {
-                type = lib.types.string;
-                description = "The short name of the license.";
-              };
-            };
-
-            spdx = lib.options.create {
-              type = lib.types.nullish lib.types.string;
-              default.value = null;
-              description = "The SPDX identifier for the license.";
-            };
-
-            url = lib.options.create {
-              type = lib.types.nullish lib.types.string;
-              description = "The URL for the license.";
-            };
-
-            free = lib.options.create {
-              type = lib.types.bool;
-              default.value = true;
-              description = "Whether the license is free.";
-            };
-
-            redistributable = lib.options.create {
-              type = lib.types.bool;
-              default = {
-                text = "config.free";
-                value = config.free;
-              };
-              description = "Whether the license is allows redistribution.";
-            };
-          };
-        });
-      in
-        lib.types.either type (lib.types.list.of type);
-
-      meta = lib.types.submodule {
-        options = {
-          name = lib.options.create {
-            type = lib.types.string;
-            description = "The name of the package.";
-          };
-
-          description = lib.options.create {
-            type = lib.types.nullish lib.types.string;
-            default.value = null;
-            description = "The description for the package.";
-          };
-
-          homepage = lib.options.create {
-            type = lib.types.nullish lib.types.string;
-            default.value = null;
-            description = "The homepage for the package.";
-          };
-
-          license = lib.options.create {
-            type = config.lib.types.license;
-            description = "The license for the package.";
-          };
-
-          free = lib.options.create {
-            type = lib.types.bool;
-            default.value = true;
-            description = "Whether the package is free.";
-          };
-
-          insecure = lib.options.create {
-            type = lib.types.bool;
-            default.value = false;
-            description = "Whether the package is insecure.";
-          };
-
-          broken = lib.options.create {
-            type = lib.types.bool;
-            default.value = false;
-            description = "Whether the package is broken.";
-          };
-
-          main = lib.options.create {
-            type = lib.types.nullish lib.types.string;
-            default.value = null;
-            description = "The main entry point for the package.";
-          };
-
-          platforms = lib.options.create {
-            type = lib.types.list.of lib.types.string;
-            default.value = [];
-            description = "The platforms the package supports.";
-          };
-        };
-      };
-
-      package = {
-        base = lib.types.submodule ({config}: {
-          freeform = lib.types.any;
-
-          options = {
-            name = lib.options.create {
-              type = lib.types.string;
-              default = {
-                value = "${config.pname}-${config.version or "unknown"}";
-                text = "\${config.pname}-\${config.version}";
-              };
-              description = "The name of the package.";
-            };
-
-            pname = lib.options.create {
-              type = lib.types.nullish lib.types.string;
-              default.value = null;
-              description = "The name of the package.";
-            };
-
-            version = lib.options.create {
-              type = lib.types.nullish lib.types.string;
-              default.value = null;
-              description = "The version of the package.";
-            };
-
-            meta = lib.options.create {
-              type = lib'.types.meta;
-              default = {
-                text = "{ name = <package>.pname; }";
-                value = {
-                  name = config.pname;
-                };
-              };
-              description = "The metadata for the package.";
-            };
-
-            env = lib.options.create {
-              type = lib.types.attrs.of lib.types.string;
-              default.value = {};
-              description = "Environment variables for the package's builder to use.";
-            };
-
-            phases = lib.options.create {
-              type = lib.types.dag.of (
-                lib.types.either
-                lib.types.string
-                (lib.types.function lib.types.string)
-              );
-              default.value = {};
-              description = "Phases for the package's builder to use.";
-            };
-
-            platform = {
-              build = lib.options.create {
-                type = lib.types.nullish lib.types.string;
-                default.value = null;
-                description = "The platform the package is built on.";
-              };
-
-              host = lib.options.create {
-                type = lib.types.nullish lib.types.string;
-                default.value = null;
-                description = "The platform the package is run on.";
-              };
-
-              target = lib.options.create {
-                type = lib.types.nullish lib.types.string;
-                default.value = null;
-                description = "The platform the package generates code for.";
-              };
-            };
-
-            builder = lib.options.create {
-              type = lib'.types.builder;
-              description = "The builder for the package.";
-            };
-
-            package = lib.options.create {
-              type = lib.types.derivation;
-              default = {
-                value = config.builder.build config.builder config;
-                text = "<derivation>";
-              };
-              description = "The package derivation.";
-            };
-
-            deps = {
-              build = {
-                only = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are only used in the build environment.";
-                };
-
-                build = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are created in the build environment and are run in the build environment.";
-                };
-
-                host = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are created in the build environment and are run in the host environment.";
-                };
-
-                target = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are created in the build environment and are run in the target environment.";
-                };
-              };
-
-              host = {
-                only = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are only used in the host environment.";
-                };
-
-                host = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are run in the host environment.";
-                };
-
-                target = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are run in the host environment which produces code for the target environment.";
-                };
-              };
-
-              target = {
-                only = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are only used in the target environment.";
-                };
-
-                target = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are run in the target environment.";
-                };
-              };
-            };
-
-            versions = lib.options.create {
-              type = lib.types.attrs.of lib'.types.package;
-              default.value = {};
-              description = "Available versions of the package.";
-            };
-          };
-        });
-
-        targeted = lib.types.submodule ({config}: {
-          freeform = lib.types.any;
-
-          options = {
-            name = lib.options.create {
-              type = lib.types.string;
-              default = {
-                value = "${config.pname}-${config.version or "unknown"}";
-                text = "\${config.pname}-\${config.version}";
-              };
-              description = "The name of the package.";
-            };
-
-            pname = lib.options.create {
-              type = lib.types.nullish lib.types.string;
-              default.value = null;
-              description = "The name of the package.";
-            };
-
-            version = lib.options.create {
-              type = lib.types.nullish lib.types.string;
-              default.value = null;
-              description = "The version of the package.";
-            };
-
-            meta = lib.options.create {
-              type = lib'.types.meta;
-              default = {
-                text = "{ name = <package>.pname; }";
-                value = {
-                  name = config.pname;
-                };
-              };
-              description = "The metadata for the package.";
-            };
-
-            env = lib.options.create {
-              type = lib.types.attrs.of lib.types.string;
-              default.value = {};
-              description = "Environment variables for the package's builder to use.";
-            };
-
-            phases = lib.options.create {
-              type = lib.types.dag.of (
-                lib.types.either
-                lib.types.string
-                (lib.types.function lib.types.string)
-              );
-              default.value = {};
-              description = "Phases for the package's builder to use.";
-            };
-
-            platform = {
-              build = lib.options.create {
-                type = lib.types.string;
-                description = "The platform the package is built on.";
-              };
-
-              host = lib.options.create {
-                type = lib.types.string;
-                description = "The platform the package is run on.";
-              };
-
-              target = lib.options.create {
-                type = lib.types.string;
-                description = "The platform the package generates code for.";
-              };
-            };
-
-            builder = lib.options.create {
-              type = lib'.types.builder;
-              description = "The builder for the package.";
-            };
-
-            package = lib.options.create {
-              type = lib.types.derivation;
-              default = {
-                value = config.builder.build config.builder config;
-                text = "<derivation>";
-              };
-              description = "The package derivation.";
-            };
-
-            deps = {
-              build = {
-                only = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are only used in the build environment.";
-                };
-
-                build = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are created in the build environment and are run in the build environment.";
-                };
-
-                host = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are created in the build environment and are run in the host environment.";
-                };
-
-                target = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are created in the build environment and are run in the target environment.";
-                };
-              };
-
-              host = {
-                only = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are only used in the host environment.";
-                };
-
-                host = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are run in the host environment.";
-                };
-
-                target = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are run in the host environment which produces code for the target environment.";
-                };
-              };
-
-              target = {
-                only = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are only used in the target environment.";
-                };
-
-                target = lib.options.create {
-                  type = lib'.types.dependencies;
-                  default.value = {};
-                  description = "Dependencies which are run in the target environment.";
-                };
-              };
-            };
-
-            versions = lib.options.create {
-              type = lib.types.attrs.of lib'.types.package;
-              default.value = {};
-              description = "Available versions of the package.";
-            };
-          };
-        });
-      };
-
-      dependencies = lib.types.attrs.of (lib.types.nullish lib'.types.package);
-
-      packages = {
-        base = lib.types.attrs.of (lib.types.submodule {
-          freeform = lib'.types.package.base;
-
-          # options =
-          #   builtins.foldl' (result: system: {
-          #     "${system}" = lib.options.create {
-          #       type = lib'.types.packages.targeted;
-          #       default.value = {};
-          #       description = "Packages for the architecture `${system}`";
-          #     };
-          #   }) {}
-          #   lib'.systems.doubles.all;
-        });
-
-        targeted = lib.types.attrs.of (lib.types.submodule {
-          freeform = lib.types.nullish lib'.types.package.targeted;
-
-          options = {
-            cross = lib.options.create {
-              type = lib'.types.packages.cross;
-              default.value = {};
-              description = "Cross-compiled packages targeting another architecture.";
-            };
-          };
-        });
-
-        # Cross-compiled packages are accessed via
-        # packages.cross.<platform>.<namespace>.<name>
-        cross = lib.types.attrs.of (lib.types.submodule {
-          freeform = lib.types.attrs.of (lib.types.submodule {
-            freeform = lib.types.nullish lib'.types.package.targeted;
-          });
-        });
-      };
-
-      builder = lib.types.submodule {
-        freeform = lib.types.any;
-
-        options = {
-          build = lib.options.create {
-            type = lib.types.function lib.types.derivation;
-            description = "The function that creates the package derivation.";
-          };
-        };
-      };
-    };
-  };
-}

potluck/src/packages/default.nix

@@ -1,27 +0,0 @@
-{
-  lib,
-  config,
-}: let
-  lib' = config.lib;
-
-  doubles = lib'.systems.doubles.all;
-
-  generic = builtins.removeAttrs config.packages ["targeted"];
-in {
-  includes = [
-    # ./aux/foundation.nix
-  ];
-
-  options = {
-    packages = lib.options.create {
-      default.value = {};
-      type = lib.types.attrs.of (lib.types.submodule {
-        freeform = lib.types.any;
-      });
-    };
-  };
-
-  config = {
-    packages.targeted.i686-linux = generic;
-  };
-}

tidepool/README.md

@@ -0,0 +1,28 @@
+# Aux Tidepool
+
+Aux Tidepool is an initial package set built on top of [Aux Foundation](../foundation). Packages
+are created and managed using [Aux Lib](../lib)'s module system to allow for highly dynamic and
+extensible configuration.
+
+## Usage
+
+Packages can be imported both with and without Nix Flakes. To import them using Nix Flakes,
+add this repository as an input.
+
+```nix
+inputs.tidepool.url = "https://git.auxolotl.org/auxolotl/labs/archive/main.tar.gz?dir=tidepool";
+```
+
+To import this library without using Nix Flakes, you will need to use `fetchTarball` and
+import the library entrypoint.
+
+```nix
+let
+    labs = builtins.fetchTarball {
+        url = "https://git.auxolotl.org/auxolotl/labs/archive/main.tar.gz";
+        sha256 = "<sha256>";
+    };
+    tidepool = import "${labs}/tidepool" {};
+in
+    # ...
+```

tidepool/default.nix

@@ -0,0 +1,27 @@
+{
+  lib ? import ./../lib,
+  foundation ? import ./../foundation {system = "i686-linux";},
+}: let
+  modules = import ./src/modules.nix;
+
+  result = lib.modules.run {
+    modules =
+      (builtins.attrValues modules)
+      ++ [
+        ./src/export.nix
+        {
+          __file__ = ./default.nix;
+
+          options.foundation = lib.options.create {
+            type = lib.types.attrs.of lib.types.derivation;
+          };
+
+          config.foundation = foundation;
+        }
+      ];
+  };
+in
+  result.config.exported
+  // {
+    inherit (result) config;
+  }

tidepool/flake.lock

@@ -8,10 +8,10 @@
       },
       "locked": {
         "dir": "foundation",
-        "dirtyRev": "9c29945531c58ad81f05cd1f4958c8894a733216-dirty",
-        "dirtyShortRev": "9c29945-dirty",
-        "lastModified": 1718255029,
-        "narHash": "sha256-fmrDe4GfvVfXZ9lzaOt+tgBUMFCsyKr0Dlnm8aQwAXs=",
+        "dirtyRev": "0312e3c4cc261e2384fcf372c766a0cf245f3213-dirty",
+        "dirtyShortRev": "0312e3c-dirty",
+        "lastModified": 1718460525,
+        "narHash": "sha256-+ToaXY8ISWLx9AtO/CjfY/6SGuKu8A/d9ncqE4h2H20=",
         "type": "git",
         "url": "file:../?dir=foundation"
       },
@@ -24,10 +24,10 @@
     "lib": {
       "locked": {
         "dir": "lib",
-        "dirtyRev": "9c29945531c58ad81f05cd1f4958c8894a733216-dirty",
-        "dirtyShortRev": "9c29945-dirty",
-        "lastModified": 1718255029,
-        "narHash": "sha256-fmrDe4GfvVfXZ9lzaOt+tgBUMFCsyKr0Dlnm8aQwAXs=",
+        "dirtyRev": "0312e3c4cc261e2384fcf372c766a0cf245f3213-dirty",
+        "dirtyShortRev": "0312e3c-dirty",
+        "lastModified": 1718460525,
+        "narHash": "sha256-+ToaXY8ISWLx9AtO/CjfY/6SGuKu8A/d9ncqE4h2H20=",
         "type": "git",
         "url": "file:../?dir=lib"
       },

tidepool/src/builders/basic.nix

@@ -0,0 +1,80 @@
+{
+  lib,
+  config,
+}: let
+  cfg = config.builders.basic;
+
+  lib' = config.lib;
+
+  inherit (config) foundation;
+in {
+  config.builders = {
+    basic = {
+      executable = "${foundation.stage2-bash}/bin/bash";
+
+      build = package: let
+        phases = package.phases;
+        sorted = lib.dag.sort.topographic phases;
+
+        script =
+          lib.strings.concatMapSep "\n" (
+            entry:
+              if builtins.isFunction entry.value
+              then entry.value package
+              else entry.value
+          )
+          sorted.result;
+
+        system = package.platform.build.double;
+
+        built = builtins.derivation (
+          package.env
+          // {
+            inherit (package) name;
+            inherit script system;
+
+            passAsFile = ["script"];
+
+            SHELL = cfg.executable;
+
+            PATH = let
+              bins = lib.paths.bin (
+                (lib'.packages.dependencies.getPackages package.deps.build.host)
+                ++ [
+                  foundation.stage2-bash
+                  foundation.stage2-coreutils
+                ]
+              );
+            in
+              builtins.concatStringsSep ":" ([bins] ++ (lib.lists.when (package.env ? PATH) [package.env.PATH]));
+
+            builder = cfg.executable;
+
+            args = [
+              "-e"
+              (builtins.toFile "bash-builder.sh" ''
+                export CONFIG_SHELL=$SHELL
+
+                # Normalize the NIX_BUILD_CORES variable. The value might be 0, which
+                # means that we're supposed to try and auto-detect the number of
+                # available CPU cores at run-time.
+                NIX_BUILD_CORES="''${NIX_BUILD_CORES:-1}"
+                if ((NIX_BUILD_CORES <= 0)); then
+                  guess=$(nproc 2>/dev/null || true)
+                  ((NIX_BUILD_CORES = guess <= 0 ? 1 : guess))
+                fi
+                export NIX_BUILD_CORES
+
+                bash -eux $scriptPath
+              '')
+            ];
+          }
+        );
+      in
+        built
+        // {
+          inherit (package) meta;
+        };
+    };
+  };
+}

tidepool/src/builders/default.nix

@@ -0,0 +1,18 @@
+{
+  lib,
+  config,
+}: let
+  lib' = config.lib;
+in {
+  includes = [
+    ./basic.nix
+  ];
+
+  options = {
+    builders = lib.options.create {
+      description = "A set of builders that can be used to build packages.";
+      type = lib.types.attrs.of lib'.types.builder;
+      default.value = {};
+    };
+  };
+}

tidepool/src/export.nix

@@ -0,0 +1,34 @@
+# This file handles creating all of the exports for this project and is not
+# exported itself.
+{
+  lib,
+  config,
+}: let
+  lib' = config.lib;
+in {
+  freeform = lib.types.any;
+
+  config = {
+    exports = {
+      lib = config.lib;
+      modules = import ./modules.nix;
+
+      packages = {
+        # foundation-gcc-x86_64 =
+        # (config.packages.foundation.gcc.versions."13.2.0".extend (args: {
+        #   config = {
+        #     platform = {
+        #       target = lib.modules.overrides.force "x86_64-linux";
+        #     };
+        #   };
+        # }))
+        # .config;
+        foundation-gcc = config.packages.foundation.gcc;
+        # example-x = config.packages.example.x;
+        # cross-example-x-x86_64-linux = config.packages.cross.x86_64-linux.example.x;
+      };
+    };
+
+    # exported.packages.i686-linux.cross-foundation-gcc-x86_64-linux = config.packages.cross.x86_64-linux.foundation.gcc.package;
+  };
+}

tidepool/src/exports/lib.nix

@@ -1,6 +1,6 @@
 {
-  config,
   lib,
+  config,
 }: let
 in {
   options = {

tidepool/src/exports/packages.nix

@@ -0,0 +1,53 @@
+{
+  config,
+  lib,
+}: let
+  lib' = config.lib;
+in {
+  options = {
+    exports.packages = lib.options.create {
+      type = lib.types.attrs.of (lib'.types.raw);
+      default.value = {};
+    };
+
+    exported.packages = lib.options.create {
+      type = lib.types.attrs.of (lib.types.attrs.of lib.types.derivation);
+      default.value = {};
+    };
+  };
+
+  config = {
+    exported.packages = let
+      all = lib.attrs.generate lib'.systems.doubles.all (
+        system: let
+          all =
+            builtins.mapAttrs
+            (
+              name: package: let
+                result = lib'.packages.build package system system;
+              in
+                result
+            )
+            config.exports.packages;
+
+          available =
+            lib.attrs.filter
+            (name: package: builtins.elem system package.meta.platforms)
+            all;
+
+          packages =
+            builtins.mapAttrs
+            (name: package: package.package)
+            available;
+        in
+          packages
+      );
+
+      available =
+        lib.attrs.filter
+        (system: packages: builtins.length (builtins.attrNames packages) != 0)
+        all;
+    in
+      available;
+  };
+}

tidepool/src/lib/default.nix

@@ -6,6 +6,7 @@
 in {
   includes = [
     ./options.nix
+    ./packages.nix
     ./systems.nix
     ./types.nix
   ];
@@ -18,4 +19,8 @@ in {
       apply = value: lib.extend (final: prev: prev.attrs.mergeRecursive prev value);
     };
   };
+
+  config = {
+    __module__.args.dynamic.lib' = config.lib;
+  };
 }

tidepool/src/lib/packages.nix

@@ -0,0 +1,65 @@
+{
+  lib,
+  lib',
+  config,
+}: {
+  config = {
+    lib.packages = {
+      dependencies = {
+        getPackages = dependencies: let
+          available =
+            builtins.filter
+            (dependency: !(builtins.isNull dependency))
+            (builtins.attrValues dependencies);
+        in
+          builtins.map (dependency: dependency.package) available;
+      };
+
+      getLatest = alias: let
+        versions = builtins.attrNames alias.versions;
+        sorted = builtins.sort (lib.versions.gte) versions;
+      in
+        builtins.head sorted;
+
+      build = package: system: cross: let
+        resolved =
+          if package ? versions
+          then package.versions.${config.preferences.packages.version} or (package.versions.${lib'.packages.getLatest package})
+          else package;
+
+        buildDependencies = builtins.mapAttrs (name: dep: lib'.packages.build dep system cross);
+
+        result = resolved.extend ({config}: {
+          config = {
+            platform = {
+              build = system;
+              host = cross;
+              target = lib.modules.override 150 cross;
+            };
+
+            deps = {
+              build = {
+                only = buildDependencies resolved.deps.build.only;
+                build = buildDependencies resolved.deps.build.build;
+                host = buildDependencies resolved.deps.build.host;
+                target = buildDependencies resolved.deps.build.target;
+              };
+              host = {
+                only = buildDependencies resolved.deps.host.only;
+                host = buildDependencies resolved.deps.host.host;
+                target = buildDependencies resolved.deps.host.target;
+              };
+              target = {
+                only = buildDependencies resolved.deps.target.only;
+                target = buildDependencies resolved.deps.target.target;
+              };
+            };
+
+            package = config.builder.build config;
+          };
+        });
+      in
+        result.config;
+    };
+  };
+}

tidepool/src/lib/systems.nix

@@ -1460,8 +1460,8 @@ in {
             lib.strings.when
             (kernel.name == "netbsd" && netbsdExec != kernel.exec)
             kernel.exec.name;
-          abi = lib.strings.when (abi != types.abis.unknown) "-${abi.name}";
-        in "${cpu.name}-${vendor.name}-${kernelName}${exec}${abi}";
+          abi' = lib.strings.when (abi != types.abis.unknown) "-${abi.name}";
+        in "${cpu.name}-${vendor.name}-${kernelName}${exec}${abi'}";
       };
 
       create = components:
@@ -1909,28 +1909,26 @@ in {
           then {system = args;}
           else args;
 
-        matchers = builtins.mapAttrs (name: match: match resolved.system) lib'.systems.match;
-        validators = builtins.mapAttrs (name: validate: validate (resolved.gcc.arch or "default")) lib'.systems.match.architecture;
-
-        platformInfo =
-          {
-            linux-kernel = settings.linux-kernel or {};
-            gcc = settings.gcc or {};
-            rustc = settings.rustc or {};
-          }
-          // lib'.systems.platforms.select resolved;
-
         resolved =
-          matchers
-          // validators
-          // platformInfo
-          // {
+          {
             system = lib'.systems.from.string (
               if settings ? triple
               then settings.triple
               else settings.system
             );
 
+            inherit
+              ({
+                  linux-kernel = settings.linux-kernel or {};
+                  gcc = settings.gcc or {};
+                  rustc = settings.rustc or {};
+                }
+                // lib'.systems.platforms.select resolved)
+              linux-kernel
+              gcc
+              rust
+              ;
+
             double = lib'.systems.into.double resolved.system;
             triple = lib'.systems.into.triple resolved.system;
 
@@ -2162,6 +2160,8 @@ in {
               };
             };
           }
+          // builtins.mapAttrs (name: match: match resolved.system) lib'.systems.match
+          // builtins.mapAttrs (name: validate: validate (resolved.gcc.arch or "default")) lib'.systems.validate.architecture
           // settings;
 
         assertions =
@@ -2178,7 +2178,7 @@ in {
           true
           (resolved.system.abi.assertions or []);
       in
-        assert resolved.useAndroidPrebuild -> resolved.isAndroid;
+        assert resolved.useAndroidPrebuilt -> resolved.isAndroid;
         assert assertions;
         # And finally, return the generated system info.
           resolved;

tidepool/src/lib/types.nix

@@ -0,0 +1,304 @@
+{
+  lib,
+  lib',
+  config,
+}: {
+  config = {
+    lib.types = {
+      license = let
+        type = lib.types.submodule ({config}: {
+          options = {
+            name = {
+              full = lib.options.create {
+                description = "The full name of the license.";
+                type = lib.types.string;
+              };
+
+              short = lib.options.create {
+                description = "The short name of the license.";
+                type = lib.types.string;
+              };
+            };
+
+            spdx = lib.options.create {
+              description = "The SPDX identifier for the license.";
+              type = lib.types.nullish lib.types.string;
+              default.value = null;
+            };
+
+            url = lib.options.create {
+              description = "The URL for the license.";
+              type = lib.types.nullish lib.types.string;
+            };
+
+            free = lib.options.create {
+              description = "Whether the license is free.";
+              type = lib.types.bool;
+              default.value = true;
+            };
+
+            redistributable = lib.options.create {
+              description = "Whether the license is allows redistribution.";
+              type = lib.types.bool;
+              default = {
+                text = "config.free";
+                value = config.free;
+              };
+            };
+          };
+        });
+      in
+        lib.types.either type (lib.types.list.of type);
+
+      builder = lib.types.submodule {
+        freeform = lib.types.any;
+
+        options = {
+          build = lib.options.create {
+            description = "The build function which takes a package definition and creates a derivation.";
+            type = lib.types.function lib.types.derivation;
+          };
+        };
+      };
+
+      packages = lib.types.attrs.of (lib'.types.alias);
+
+      alias = lib.types.attrs.of (lib.types.submodule {
+        options = {
+          versions = lib.options.create {
+            description = "All available package versions.";
+            type = lib.types.attrs.of lib'.types.package;
+          };
+        };
+      });
+
+      dependencies = lib.types.attrs.of (lib.types.nullish (lib.types.either lib'.types.alias lib'.types.package));
+
+      package = lib.types.submodule ({
+        config,
+        meta,
+      }: {
+        options = {
+          extend = lib.options.create {
+            description = "Extend the package's submodules with additional configuration.";
+            type = lib.types.function lib.types.raw;
+            default.value = value:
+              meta.extend {
+                modules =
+                  if builtins.isAttrs value
+                  then [{config = value;}]
+                  else lib.lists.from.any value;
+              };
+          };
+
+          name = lib.options.create {
+            description = "The name of the package.";
+            type = lib.types.string;
+            default = {
+              text = "\${config.pname}-\${config.version}";
+              value =
+                if config.pname != null && config.version != null
+                then "${config.pname}-${config.version}"
+                else "";
+            };
+          };
+
+          pname = lib.options.create {
+            description = "The program name for the package";
+            type = lib.types.nullish lib.types.string;
+            default.value = null;
+          };
+
+          version = lib.options.create {
+            description = "The version for the package.";
+            type = lib.types.nullish lib.types.version;
+            default.value = null;
+          };
+
+          meta = {
+            description = lib.options.create {
+              description = "The description for the package.";
+              type = lib.types.nullish lib.types.string;
+              default.value = null;
+            };
+
+            homepage = lib.options.create {
+              description = "The homepage for the package.";
+              type = lib.types.nullish lib.types.string;
+              default.value = null;
+            };
+
+            license = lib.options.create {
+              description = "The license for the package.";
+              type = lib.types.nullish lib'.types.license;
+              default.value = null;
+            };
+
+            free = lib.options.create {
+              description = "Whether the package is free.";
+              type = lib.types.bool;
+              default.value = true;
+            };
+
+            insecure = lib.options.create {
+              description = "Whether the package is insecure.";
+              type = lib.types.bool;
+              default.value = false;
+            };
+
+            broken = lib.options.create {
+              description = "Whether the package is broken.";
+              type = lib.types.bool;
+              default.value = false;
+            };
+
+            main = lib.options.create {
+              description = "The main entry point for the package.";
+              type = lib.types.nullish lib.types.string;
+              default.value = null;
+            };
+
+            platforms = lib.options.create {
+              description = "The platforms the package supports.";
+              type = lib.types.list.of lib.types.string;
+              default.value = [];
+            };
+          };
+
+          platform = {
+            build = lib.options.create {
+              description = "The build platform for the package.";
+              type = lib.types.string;
+              default.value = "x86_64-linux";
+              apply = raw: let
+                system = lib'.systems.from.string raw;
+              in {
+                inherit raw system;
+
+                double = lib'.systems.into.double system;
+                triple = lib'.systems.into.triple system;
+              };
+            };
+
+            host = lib.options.create {
+              description = "The host platform for the package.";
+              type = lib.types.string;
+              default.value = "x86_64-linux";
+              apply = raw: let
+                system = lib'.systems.from.string raw;
+              in {
+                inherit raw system;
+
+                double = lib'.systems.into.double system;
+                triple = lib'.systems.into.triple system;
+              };
+            };
+
+            target = lib.options.create {
+              description = "The target platform for the package.";
+              type = lib.types.string;
+              default.value = "x86_64-linux";
+              apply = raw: let
+                system = lib'.systems.from.string raw;
+              in {
+                inherit raw system;
+
+                double = lib'.systems.into.double system;
+                triple = lib'.systems.into.triple system;
+              };
+            };
+          };
+
+          phases = lib.options.create {
+            description = "The phases for the package.";
+            type = lib.types.dag.of (
+              lib.types.either
+              lib.types.string
+              (lib.types.function lib.types.string)
+            );
+            default.value = {};
+          };
+
+          env = lib.options.create {
+            description = "The environment for the package.";
+            type = lib.types.attrs.of lib.types.string;
+            default.value = {};
+          };
+
+          builder = lib.options.create {
+            description = "The builder for the package.";
+            type = lib'.types.builder;
+          };
+
+          deps = {
+            build = {
+              only = lib.options.create {
+                description = "Dependencies which are only used in the build environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+
+              build = lib.options.create {
+                description = "Dependencies which are created in the build environment and are executed in the build environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+
+              host = lib.options.create {
+                description = "Dependencies which are created in the build environment and are executed in the host environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+
+              target = lib.options.create {
+                description = "Dependencies which are created in the build environment and are executed in the target environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+            };
+
+            host = {
+              only = lib.options.create {
+                description = "Dependencies which are only used in the host environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+
+              host = lib.options.create {
+                description = "Dependencies which are executed in the host environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+
+              target = lib.options.create {
+                description = "Dependencies which are executed in the host environment which produces code for the target environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+            };
+
+            target = {
+              only = lib.options.create {
+                description = "Dependencies which are only used in the target environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+
+              target = lib.options.create {
+                description = "Dependencies which are executed in the target environment.";
+                type = lib'.types.dependencies;
+                default.value = {};
+              };
+            };
+          };
+
+          package = lib.options.create {
+            description = "The built derivation.";
+            type = lib.types.derivation;
+            default.value = config.builder.build config;
+          };
+        };
+      });
+    };
+  };
+}

tidepool/src/mirrors/default.nix

@@ -0,0 +1,5 @@
+{
+  includes = [
+    ./gnu.nix
+  ];
+}

tidepool/src/mirrors/gnu.nix

@@ -0,0 +1,9 @@
+{lib}: {
+  options.mirrors = {
+    gnu = lib.options.create {
+      description = "The GNU mirror to use";
+      type = lib.types.string;
+      default.value = "https://ftp.gnu.org/gnu";
+    };
+  };
+}

tidepool/src/modules.nix

@@ -1,5 +1,7 @@
 {
+  builders = ./builders;
   exports = ./exports;
   lib = ./lib;
+  mirrors = ./mirrors;
   packages = ./packages;
 }

tidepool/src/packages/default.nix

@@ -0,0 +1,92 @@
+{
+  lib,
+  lib',
+  config,
+}: let
+  doubles = lib'.systems.doubles.all;
+
+  packages = builtins.removeAttrs config.packages ["cross"];
+in {
+  includes = [
+    ./foundation
+  ];
+
+  options = {
+    packages = lib.options.create {
+      description = "The package set.";
+      type = lib.types.submodule {
+        freeform = lib.types.attrs.of (lib.types.submodule {
+          freeform = lib'.types.alias;
+        });
+
+        options.cross = lib.attrs.generate doubles (system:
+          lib.options.create {
+            description = "The cross-compiled package set for the ${system} target.";
+            type = lib'.types.packages;
+            default = {};
+          });
+      };
+    };
+
+    preferences.packages = {
+      version = lib.options.create {
+        description = "The preferred package version when using aliases.";
+        type = lib.types.enum ["latest" "stable"];
+        default.value = "latest";
+      };
+    };
+  };
+
+  config.packages.cross = lib.attrs.generate doubles (
+    system:
+      builtins.mapAttrs
+      (
+        namespace:
+          builtins.mapAttrs
+          (name: alias: let
+            setHost = package:
+              if package != {}
+              then
+                (package.extend ({config}: {
+                  config = {
+                    platform = {
+                      host = lib.modules.overrides.force system;
+                      target = lib.modules.overrides.default system;
+                    };
+
+                    deps = {
+                      build = {
+                        only = setHost package.deps.build.only;
+                        build = setHost package.deps.build.build;
+                        host = setHost package.deps.build.host;
+                        target = setHost package.deps.build.target;
+                      };
+                      host = {
+                        only = setHost package.deps.host.only;
+                        host = setHost package.deps.host.host;
+                        target = setHost package.deps.host.target;
+                      };
+                      target = {
+                        only = setHost package.deps.target.only;
+                        target = setHost package.deps.target.target;
+                      };
+                    };
+                  };
+                }))
+                .config
+              else package;
+
+            updated =
+              alias
+              // {
+                versions =
+                  builtins.mapAttrs
+                  (version: package: setHost package)
+                  alias.versions;
+              };
+          in
+            updated)
+      )
+      packages
+  );
+}

tidepool/src/packages/foundation/default.nix

@@ -0,0 +1,43 @@
+{
+  lib,
+  lib',
+  config,
+  options,
+}: {
+  includes = [
+    ./gcc
+  ];
+
+  config = {
+    packages = {
+      # example = {
+      #   x = {
+      #     versions = {
+      #       "latest" = {config}: {
+      #         config = {
+      #           meta = {
+      #             platforms = ["i686-linux" "x86_64-linux"];
+      #           };
+
+      #           pname = "x";
+      #           version = "1.0.0";
+
+      #           builder = builders.basic;
+
+      #           phases = {
+      #             build = ''
+      #               make --build ${config.platform.build.double} --host ${config.platform.host.double}
+      #             '';
+
+      #             install = lib.dag.entry.after ["build"] ''
+      #               make install DESTDIR=$out
+      #             '';
+      #           };
+      #         };
+      #       };
+      #     };
+      #   };
+      # };
+    };
+  };
+}

tidepool/src/packages/foundation/gcc/default.nix

@@ -0,0 +1,226 @@
+{
+  lib,
+  lib',
+  config,
+  options,
+}: let
+  inherit
+    (config)
+    mirrors
+    builders
+    # These are the upstream foundational packages exported from the Aux Foundation project.
+    
+    foundation
+    ;
+in {
+  config.packages.foundation.gcc = {
+    versions = {
+      "13.2.0" = {
+        config,
+        meta,
+      }: {
+        options = {
+          src = lib.options.create {
+            type = lib.types.derivation;
+            description = "Source for the package.";
+          };
+
+          cc = {
+            src = lib.options.create {
+              type = lib.types.derivation;
+              description = "The cc source for the package.";
+            };
+          };
+
+          gmp = {
+            src = lib.options.create {
+              type = lib.types.derivation;
+              description = "The gmp source for the package.";
+            };
+
+            version = lib.options.create {
+              type = lib.types.string;
+              description = "Version of gmp.";
+            };
+          };
+
+          mpfr = {
+            src = lib.options.create {
+              type = lib.types.derivation;
+              description = "The mpfr source for the package.";
+            };
+
+            version = lib.options.create {
+              type = lib.types.string;
+              description = "Version of mpfr.";
+            };
+          };
+
+          mpc = {
+            src = lib.options.create {
+              type = lib.types.derivation;
+              description = "The mpc source for the package.";
+            };
+
+            version = lib.options.create {
+              type = lib.types.string;
+              description = "Version of mpc.";
+            };
+          };
+
+          isl = {
+            src = lib.options.create {
+              type = lib.types.derivation;
+              description = "The isl source for the package.";
+            };
+            version = lib.options.create {
+              type = lib.types.string;
+              description = "Version of isl.";
+            };
+          };
+        };
+
+        config = {
+          meta = {
+            platforms = ["i686-linux"];
+          };
+
+          pname = "gcc";
+          version = "13.2.0";
+
+          builder = builders.basic;
+
+          env = {
+            PATH = let
+              gcc =
+                if config.platform.build.triple == config.platform.host.triple
+                # If we're on the same system then we can use the existing GCC instance.
+                then foundation.stage2-gcc
+                # Otherwise we are going to need a cross-compiler.
+                else
+                  (meta.extend (args: {
+                    config = {
+                      platform = {
+                        target = lib.modules.override.force config.platform.host.triple;
+                      };
+                    };
+                  }))
+                  .config
+                  .package;
+            in
+              lib.paths.bin [
+                foundation.stage2-gcc
+                foundation.stage2-binutils
+                foundation.stage2-gnumake
+                foundation.stage2-gnused
+                foundation.stage2-gnugrep
+                foundation.stage2-gawk
+                foundation.stage2-diffutils
+                foundation.stage2-findutils
+                foundation.stage2-gnutar
+                foundation.stage2-gzip
+                foundation.stage2-bzip2
+                foundation.stage1-xz
+              ];
+          };
+
+          phases = let
+            host = lib'.systems.withBuildInfo config.platform.host;
+          in {
+            unpack = lib.dag.entry.before ["patch"] ''
+              # Unpack
+              tar xf ${config.src}
+              tar xf ${config.gmp.src}
+              tar xf ${config.mpfr.src}
+              tar xf ${config.mpc.src}
+              tar xf ${config.isl.src}
+              cd gcc-${config.version}
+
+              ln -s ../gmp-${config.gmp.version} gmp
+              ln -s ../mpfr-${config.mpfr.version} mpfr
+              ln -s ../mpc-${config.mpc.version} mpc
+              ln -s ../isl-${config.isl.version} isl
+            '';
+
+            patch = lib.dag.entry.between ["configure"] ["unpack"] ''
+              # Patch
+              # force musl even if host triple is gnu
+              sed -i 's|"os/gnu-linux"|"os/generic"|' libstdc++-v3/configure.host
+            '';
+
+            configure = lib.dag.entry.between ["build"] ["patch"] ''
+              # Configure
+              export CC="gcc -Wl,-dynamic-linker -march=${host.gcc.arch or host.system.cpu.arch} -Wl,${foundation.stage1-musl}/lib/libc.so"
+              export CXX="g++ -Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
+              export CFLAGS_FOR_TARGET="-Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
+              export LIBRARY_PATH="${foundation.stage1-musl}/lib"
+
+              bash ./configure \
+                --prefix=$out \
+                --build=${config.platform.build.triple} \
+                --host=${config.platform.host.triple} \
+                --target=${config.platform.target.triple} \
+                --with-native-system-header-dir=/include \
+                --with-sysroot=${foundation.stage1-musl} \
+                --enable-languages=c,c++ \
+                --disable-bootstrap \
+                --disable-libsanitizer \
+                --disable-lto \
+                --disable-multilib \
+                --disable-plugin \
+                CFLAGS=-static \
+                CXXFLAGS=-static
+            '';
+
+            build = lib.dag.entry.between ["install"] ["configure"] ''
+              # Build
+              make -j $NIX_BUILD_CORES
+            '';
+
+            install = lib.dag.entry.after ["build"] ''
+              # Install
+              make -j $NIX_BUILD_CORES install-strip
+            '';
+          };
+
+          src = builtins.fetchurl {
+            url = "${mirrors.gnu}/gcc/gcc-${config.version}/gcc-${config.version}.tar.xz";
+            sha256 = "4nXnZEKmBnNBon8Exca4PYYTFEAEwEE1KIY9xrXHQ9o=";
+          };
+
+          gmp = {
+            version = "6.3.0";
+            src = builtins.fetchurl {
+              url = "${mirrors.gnu}/gmp/gmp-${config.gmp.version}.tar.xz";
+              sha256 = "o8K4AgG4nmhhb0rTC8Zq7kknw85Q4zkpyoGdXENTiJg=";
+            };
+          };
+
+          mpfr = {
+            version = "4.2.1";
+            src = builtins.fetchurl {
+              url = "${mirrors.gnu}/mpfr/mpfr-${config.mpfr.version}.tar.xz";
+              sha256 = "J3gHNTpnJpeJlpRa8T5Sgp46vXqaW3+yeTiU4Y8fy7I=";
+            };
+          };
+
+          mpc = {
+            version = "1.3.1";
+            src = builtins.fetchurl {
+              url = "${mirrors.gnu}/mpc/mpc-${config.mpc.version}.tar.gz";
+              sha256 = "q2QkkvXPiCt0qgy3MM1BCoHtzb7IlRg86TDnBsHHWbg=";
+            };
+          };
+
+          isl = {
+            version = "0.24";
+            src = builtins.fetchurl {
+              url = "https://gcc.gnu.org/pub/gcc/infrastructure/isl-${config.isl.version}.tar.bz2";
+              sha256 = "/PeN2WVsEOuM+fvV9ZoLawE4YgX+GTSzsoegoYmBRcA=";
+            };
+          };
+        };
+      };
+    };
+  };
+}