feat(c): add configuration files

c/.editorconfig

@@ -0,0 +1,22 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 80
+tab_width = 4
+
+[{Makefile,*.mk}]
+indent_style = tab
+
+[*.nix]
+indent_style = space
+tab_width = 2
+indent_size = 2
+
+[*.lock]
+indent_style = unset
+insert_final_newline = unset

c/.gitattributes

@@ -0,0 +1,2 @@
+* text=lf
+* eol=lf

c/.gitignore

@@ -0,0 +1,15 @@
+# binaries
+hello
+
+# build
+*.[aod]
+
+# config
+compile_commands.json
+.pre-commit-config.yaml
+.cache
+
+# nix
+.direnv
+.envrc
+result

c/Dockerfile

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+# Credit to Mitchell Hashimoto
+# post: https://mitchellh.com/writing/nix-with-dockerfiles
+
+# Nix builder
+FROM nixos/nix:latest AS builder
+
+# Copy our source and setup our working dir.
+COPY . /tmp/build
+WORKDIR /tmp/build
+
+# Build our Nix environment
+RUN nix \
+    --extra-experimental-features "nix-command flakes" \
+    --option filter-syscalls false \
+    build
+
+# Copy the Nix store closure into a directory. The Nix store closure is the
+# entire set of Nix store values that we need for our build.
+RUN mkdir /tmp/nix-store-closure
+RUN cp -R $(nix-store -qR result/) /tmp/nix-store-closure
+
+# Final image is based on scratch. We copy a bunch of Nix dependencies
+# but they're fully self-contained so we don't need Nix anymore.
+FROM scratch
+
+# Copy /nix/store
+COPY --from=builder /tmp/nix-store-closure /nix/store
+COPY --from=builder /tmp/build/result /app
+CMD ["/app/bin/hello"]

c/tokei.toml

@@ -0,0 +1,4 @@
+columns = 80
+sort = "lines"
+types = ["C", "C Header", "Makefile", "Markdown"]
+treat_doc_strings_as_comments = true