3 files changed, 186 insertions(+), 0 deletions(-)

A environments/default.nix
A flake.lock
A flake.nix

@@ 0,0 1,16 @@
+# The default environment: both agents, no instructions, no skills.
+{
+  claude.enable = true;
+  codex.enable = true;
+
+  launchers = {
+    claude = {
+      agent = "claude";
+      id = "default-claude";
+    };
+    codex = {
+      agent = "codex";
+      id = "default-codex";
+    };
+  };
+}

@@ 0,0 1,119 @@
+{
+  "nodes": {
+    "claude-code": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1790373703,
+        "narHash": "sha256-K4bkqmIIQraMokq3xAaZo/Vm/fptjLBA5ajXbUvzwOg=",
+        "owner": "sadjow",
+        "repo": "claude-code-nix",
+        "rev": "0bbe2588524a0280307c81c14fd5631c7cd277b0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sadjow",
+        "repo": "claude-code-nix",
+        "type": "github"
+      }
+    },
+    "codex": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1790385878,
+        "narHash": "sha256-qSfulhmPl3ec5QrO0UGfUTRy2WFJnsjzQqWhyjEpclU=",
+        "owner": "sadjow",
+        "repo": "codex-cli-nix",
+        "rev": "4c27cc2b9a774831ba3718bdfa6465a5d02cb225",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sadjow",
+        "repo": "codex-cli-nix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1790323409,
+        "narHash": "sha256-VVTPf+Hyd5ebpjBMHmrLMSBIeW6ls48Bqtosj7CNKLA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e94cb152ed51bd6e24eb4a41f1460252beb52cd2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "claude-code": "claude-code",
+        "codex": "codex",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

@@ 0,0 1,51 @@
+{
+  description = "Module-based environments for coding agents (Claude Code, Codex)";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    claude-code = {
+      url = "github:sadjow/claude-code-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    codex = {
+      url = "github:sadjow/codex-cli-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      claude-code,
+      codex,
+    }:
+    let
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f nixpkgs.legacyPackages.${system});
+    in
+    {
+      lib = import ./lib {
+        inherit (nixpkgs) lib;
+        defaultPackages = system: {
+          claude = claude-code.packages.${system}.default;
+          codex = codex.packages.${system}.default;
+        };
+      };
+
+      packages = forAllSystems (pkgs: {
+        default =
+          (self.lib.mkEnvironment {
+            inherit pkgs;
+            modules = [ ./environments/default.nix ];
+          }).package;
+      });
+
+      formatter = forAllSystems (pkgs: pkgs.nixfmt);
+    };
+}