diff --git a/buildbot_nix/github_projects.py b/buildbot_nix/github_projects.py
index ec2690d..eaf629f 100644
--- a/buildbot_nix/github_projects.py
+++ b/buildbot_nix/github_projects.py
@@ -443,8 +443,6 @@ class GitHubAppSecretService(SecretProviderBase):
 class GithubConfig:
     oauth_id: str | None
     auth_type: AuthType
-    # TODO unused
-    buildbot_user: str
     oauth_secret_name: str = "github-oauth-secret"
     webhook_secret_name: str = "github-webhook-secret"
     project_cache_file: Path = Path("github-project-cache-v1.json")
diff --git a/examples/master.nix b/examples/master.nix
index 8d9e366..450f7ac 100644
--- a/examples/master.nix
+++ b/examples/master.nix
@@ -19,10 +19,8 @@
     # All other user in the organization will be able to restart builds or evaluations.
     admins = [ "Mic92" ];
     github = {
-      # Github user used as a CI identity
-      user = "mic92-buildbot";
       authType.legacy = {
-        # Github token of the same user
+        # Github user token used as a CI identity
         tokenFile = pkgs.writeText "github-token" "ghp_000000000000000000000000000000000000"; # FIXME: replace this with a secret not stored in the nix store
       };
       # authType.app = {
diff --git a/nix/checks/master.nix b/nix/checks/master.nix
index 8b43e88..eac437a 100644
--- a/nix/checks/master.nix
+++ b/nix/checks/master.nix
@@ -22,7 +22,6 @@
           webhookSecretFile = pkgs.writeText "webhookSecret" "00000000000000000000";
           oauthSecretFile = pkgs.writeText "oauthSecret" "ffffffffffffffffffffffffffffffffffffffff";
           oauthId = "aaaaaaaaaaaaaaaaaaaa";
-          user = "mic92-buildbot";
         };
       };
     };
diff --git a/nix/master.nix b/nix/master.nix
index 5ad12e8..bea306f 100644
--- a/nix/master.nix
+++ b/nix/master.nix
@@ -5,7 +5,7 @@
 }:
 let
   cfg = config.services.buildbot-nix.master;
-  inherit (lib) mkRenamedOptionModule;
+  inherit (lib) mkRemovedOptionModule mkRenamedOptionModule;
 in
 {
   imports = [
@@ -42,6 +42,18 @@ in
         "tokenFile"
       ]
     )
+    (mkRemovedOptionModule
+      [
+        "services"
+        "buildbot-nix"
+        "master"
+        "github"
+        "user"
+      ]
+      ''
+        Setting a user is not required.
+      ''
+    )
   ];
 
   options = {
@@ -177,11 +189,6 @@ in
           default = null;
           description = "Github oauth id. Used for the login button";
         };
-        # Most likely you want to use the same user as for the buildbot
-        user = lib.mkOption {
-          type = lib.types.str;
-          description = "Github user that is used for the buildbot";
-        };
         topic = lib.mkOption {
           type = lib.types.nullOr lib.types.str;
           default = "build-with-buildbot";
@@ -314,7 +321,6 @@ in
                 else
                   "GithubConfig(
                   oauth_id=${builtins.toJSON cfg.github.oauthId},
-                  buildbot_user=${builtins.toJSON cfg.github.user},
                   topic=${builtins.toJSON cfg.github.topic},
                   auth_type=${
                           if cfg.github.authType ? "legacy" then