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jakkunightjakkunight
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Add devenv support for NixOS
+ Use Devenv to setup a standarized dev environment for NixOS.
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‎.envrc‎

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#!/usr/bin/env bash
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export DIRENV_WARN_TIMEOUT=20s
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eval "$(devenv direnvrc)"
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# `use devenv` supports the same options as the `devenv shell` command.
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#
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# To silence all output, use `--quiet`.
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#
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# Example usage: use devenv --quiet --impure --option services.postgres.enable:bool true
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use devenv

‎.gitignore‎

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*.bk
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.vscode
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*.sublime-workspace
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# Devenv
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.devenv*
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devenv.local.nix
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devenv.local.yaml
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# direnv
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.direnv
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# pre-commit
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.pre-commit-config.yaml

‎devenv.lock‎

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{
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"nodes": {
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"devenv": {
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"locked": {
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"dir": "src/modules",
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"lastModified": 1763939584,
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"owner": "cachix",
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"repo": "devenv",
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"rev": "1ebc7baa0726314d24bb5cc34d5fc7927aa57929",
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"type": "github"
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},
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"original": {
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"dir": "src/modules",
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"owner": "cachix",
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"repo": "devenv",
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"type": "github"
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}
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},
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"flake-compat": {
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"flake": false,
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"locked": {
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"lastModified": 1761588595,
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"owner": "edolstra",
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"repo": "flake-compat",
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"rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
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"type": "github"
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},
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"original": {
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"owner": "edolstra",
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"repo": "flake-compat",
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"type": "github"
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}
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},
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"git-hooks": {
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"inputs": {
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"flake-compat": "flake-compat",
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"gitignore": "gitignore",
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"nixpkgs": [
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"nixpkgs"
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]
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},
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"locked": {
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"lastModified": 1763741496,
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"owner": "cachix",
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"repo": "git-hooks.nix",
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"rev": "20e71a403c5de9ce5bd799031440da9728c1cda1",
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"type": "github"
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},
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"original": {
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"owner": "cachix",
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"repo": "git-hooks.nix",
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"type": "github"
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}
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},
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"gitignore": {
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"inputs": {
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"nixpkgs": [
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"git-hooks",
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"nixpkgs"
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]
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},
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"locked": {
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"lastModified": 1762808025,
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"owner": "hercules-ci",
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"repo": "gitignore.nix",
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"rev": "cb5e3fdca1de58ccbc3ef53de65bd372b48f567c",
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"type": "github"
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},
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"original": {
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"owner": "hercules-ci",
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"repo": "gitignore.nix",
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"type": "github"
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}
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},
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"nixpkgs": {
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"locked": {
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"lastModified": 1761313199,
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"owner": "cachix",
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"repo": "devenv-nixpkgs",
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"rev": "d1c30452ebecfc55185ae6d1c983c09da0c274ff",
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"type": "github"
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},
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"original": {
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"owner": "cachix",
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"ref": "rolling",
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"repo": "devenv-nixpkgs",
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"type": "github"
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}
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},
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"root": {
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"inputs": {
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"devenv": "devenv",
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"git-hooks": "git-hooks",
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"nixpkgs": "nixpkgs",
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"pre-commit-hooks": [
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"git-hooks"
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],
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"rust-overlay": "rust-overlay"
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}
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},
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"rust-overlay": {
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"inputs": {
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"nixpkgs": [
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"nixpkgs"
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]
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},
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"locked": {
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"lastModified": 1763952169,
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"owner": "oxalica",
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"repo": "rust-overlay",
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"rev": "ab726555a9a72e6dc80649809147823a813fa95b",
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"type": "github"
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},
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"original": {
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"owner": "oxalica",
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"repo": "rust-overlay",
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"type": "github"
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}
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}
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},
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"root": "root",
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"version": 7
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}

‎devenv.nix‎

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{
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pkgs,
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lib,
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config,
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inputs,
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...
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}: {
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# https://devenv.sh/basics/
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env.GREET = "devenv";
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# https://devenv.sh/packages/
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packages = with pkgs; [
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git
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bacon
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cargo-nextest
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gitui
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helix
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];
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# https://devenv.sh/languages/
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languages.rust = {
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enable = true;
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channel = "stable";
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};
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# https://devenv.sh/processes/
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# processes.dev.exec = "${lib.getExe pkgs.watchexec} -n -- ls -la";
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# https://devenv.sh/services/
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# services.postgres.enable = true;
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# https://devenv.sh/scripts/
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scripts.hello.exec = ''
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echo hello from $GREET
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'';
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# https://devenv.sh/basics/
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enterShell = ''
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hello # Run scripts directly
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git --version # Use packages
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'';
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# https://devenv.sh/tasks/
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# tasks = {
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# "myproj:setup".exec = "mytool build";
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# "devenv:enterShell".after = [ "myproj:setup" ];
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# };
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# https://devenv.sh/tests/
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enterTest = ''
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echo "Running tests"
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git --version | grep --color=auto "${pkgs.git.version}"
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'';
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# https://devenv.sh/git-hooks/
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# git-hooks.hooks.shellcheck.enable = true;
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# See full reference at https://devenv.sh/reference/options/
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}

‎devenv.yaml‎

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inputs:
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nixpkgs:
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url: github:cachix/devenv-nixpkgs/rolling
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rust-overlay:
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url: github:oxalica/rust-overlay
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inputs:
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nixpkgs:
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follows: nixpkgs

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