my nixos/home-manager configuration
feat(dev): remove unused codex
fully moved to claude code
-58
-57
home-manager/modules/dev/codex.nix
-57
home-manager/modules/dev/codex.nix
···
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{
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config,
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pkgs,
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lib,
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...
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}:
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let
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cfg = config.programs.codex;
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nodejsPkg = pkgs.nodejs_22;
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context7ApiKeyPath = config.programs.onepassword-secrets.secretPaths.context7ApiKey;
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githubPersonalAccessTokenPath =
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config.programs.onepassword-secrets.secretPaths.githubPersonalAccessToken;
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context7Runner = pkgs.writeShellScript "context7-mcp-runner" ''
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export PATH="${lib.makeBinPath [ nodejsPkg ]}:$PATH"
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export CONTEXT7_API_KEY="$(${pkgs.coreutils}/bin/cat ${context7ApiKeyPath})"
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exec "${nodejsPkg}/bin/npx" -y @upstash/context7-mcp
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'';
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githubRunner = pkgs.writeShellScript "github-mcp-runner" ''
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export GITHUB_PERSONAL_ACCESS_TOKEN="$(${pkgs.coreutils}/bin/cat ${githubPersonalAccessTokenPath})"
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exec "${pkgs.unstable.github-mcp-server}/bin/github-mcp-server" stdio
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'';
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in
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{
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config = lib.mkIf cfg.enable {
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programs.codex = {
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package = pkgs.unstable.codex;
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custom-instructions = ''
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You are Codex, an AI coding assistant for this repo.
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- Use the **context7 MCP** for all extended project context (searching, loading, or summarizing files beyond what is directly provided).
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- Use the **GitHub MCP** only for **read-only** access (viewing files, branches, commits, PRs, and issues); you cannot modify anything on GitHub.
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Default to:
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- `context7 MCP` for repo context
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- `GitHub MCP` for remote read-only context
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'';
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settings = {
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mcp_servers = {
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context7 = {
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command = "${context7Runner}";
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args = [ ];
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};
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github = {
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command = "${githubRunner}";
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args = [ ];
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};
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};
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};
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};
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};
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}