home-manager/gui: Disable pi-coding-agent (breaks CI)

`pi-coding-agent-bun` breaks `nix flake check` in CI: its bun2nix
`fetchBunDeps` calls `builtins.filterSource` on subpaths of the pi.nix
flake source, which requires that source derivation to be realised in the
local store. A fresh CI runner doesn't have it, so eval aborts with
`path '...-source.drv' is not valid`. It only works locally because the
source is already realised there.

Not using pi right now, so comment out the input, overlays, home module
import and the package (leaving a root-cause note in `flake.nix`) rather
than working around the upstream issue.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

flake.lock

@@ -8,7 +8,7 @@
           "ragenix",
           "nixpkgs"
         ],
-        "systems": "systems_8"
+        "systems": "systems_7"
       },
       "locked": {
         "lastModified": 1761656077,
@@ -67,34 +67,6 @@
         "type": "github"
       }
     },
-    "bun2nix": {
-      "inputs": {
-        "flake-parts": "flake-parts",
-        "nixpkgs": [
-          "pi-agent",
-          "nixpkgs"
-        ],
-        "systems": [
-          "pi-agent",
-          "systems"
-        ],
-        "treefmt-nix": "treefmt-nix_2"
-      },
-      "locked": {
-        "lastModified": 1778446047,
-        "narHash": "sha256-oQvcadh2BCkrog+SGrG6YffKJrveYpjj3TdQJWaKhaM=",
-        "owner": "nix-community",
-        "repo": "bun2nix",
-        "rev": "f2bc12af1a6369648aac41041ceeaa0b866599c6",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "ref": "2.1.0",
-        "repo": "bun2nix",
-        "type": "github"
-      }
-    },
     "copyparty": {
       "inputs": {
         "flake-utils": "flake-utils_5",
@@ -284,28 +256,6 @@
         "type": "github"
       }
     },
-    "flake-parts": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "pi-agent",
-          "bun2nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1777988971,
-        "narHash": "sha256-qIoWPDs+0/8JecyYgE3gpKQxW/4bLW/gp45vow9ioCQ=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "0678d8986be1661af6bb555f3489f2fdfc31f6ff",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -326,7 +276,7 @@
     },
     "flake-utils_10": {
       "inputs": {
-        "systems": "systems_10"
+        "systems": "systems_9"
       },
       "locked": {
         "lastModified": 1709126324,
@@ -344,7 +294,7 @@
     },
     "flake-utils_11": {
       "inputs": {
-        "systems": "systems_11"
+        "systems": "systems_10"
       },
       "locked": {
         "lastModified": 1705309234,
@@ -494,7 +444,7 @@
     },
     "flake-utils_9": {
       "inputs": {
-        "systems": "systems_9"
+        "systems": "systems_8"
       },
       "locked": {
         "lastModified": 1731533236,
@@ -636,21 +586,6 @@
         "type": "github"
       }
     },
-    "jail-nix": {
-      "locked": {
-        "lastModified": 1776230864,
-        "narHash": "sha256-YsEjjdOsGEzTeD+iT7ONh071BqWAOQWpzYVei3okAXE=",
-        "owner": "~alexdavid",
-        "repo": "jail.nix",
-        "rev": "404e7da9da5ab9aa643666682b2ba1312fa5fbe8",
-        "type": "sourcehut"
-      },
-      "original": {
-        "owner": "~alexdavid",
-        "repo": "jail.nix",
-        "type": "sourcehut"
-      }
-    },
     "libnetRepo": {
       "flake": false,
       "locked": {
@@ -860,29 +795,6 @@
         "type": "github"
       }
     },
-    "pi-agent": {
-      "inputs": {
-        "bun2nix": "bun2nix",
-        "jail-nix": "jail-nix",
-        "nixpkgs": [
-          "nixpkgs-unstable"
-        ],
-        "systems": "systems_7"
-      },
-      "locked": {
-        "lastModified": 1784984457,
-        "narHash": "sha256-y7jv+RTP0TkcJaDm7/D2xIFF9JDWKc6g5L3X3EUu3Eo=",
-        "owner": "lukasl-dev",
-        "repo": "pi.nix",
-        "rev": "fd2c62853f66a5803dae621769570f1165e59b80",
-        "type": "github"
-      },
-      "original": {
-        "owner": "lukasl-dev",
-        "repo": "pi.nix",
-        "type": "github"
-      }
-    },
     "pyproject-nix": {
       "inputs": {
         "nixpkgs": [
@@ -948,7 +860,6 @@
         "nixpkgs-mine-stable": "nixpkgs-mine-stable",
         "nixpkgs-stable": "nixpkgs-stable",
         "nixpkgs-unstable": "nixpkgs-unstable",
-        "pi-agent": "pi-agent",
         "ragenix": "ragenix",
         "sharry": "sharry"
       }
@@ -1046,21 +957,6 @@
         "type": "github"
       }
     },
-    "systems_11": {
-      "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,
@@ -1202,28 +1098,6 @@
         "type": "github"
       }
     },
-    "treefmt-nix_2": {
-      "inputs": {
-        "nixpkgs": [
-          "pi-agent",
-          "bun2nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1775636079,
-        "narHash": "sha256-pc20NRoMdiar8oPQceQT47UUZMBTiMdUuWrYu2obUP0=",
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "rev": "790751ff7fd3801feeaf96d7dc416a8d581265ba",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "type": "github"
-      }
-    },
     "utils": {
       "inputs": {
         "systems": "systems_3"

flake.nix

@@ -49,8 +49,13 @@
     copyparty.inputs.nixpkgs.follows = "nixpkgs-unstable";
     hass-west-wood.url = "github:devplayer0/hass-west-wood";
     hass-west-wood.inputs.nixpkgs.follows = "nixpkgs-unstable";
-    pi-agent.url = "github:lukasl-dev/pi.nix";
+    # Disabled: `pi-coding-agent-bun` breaks `nix flake check` in CI. Its bun2nix `fetchBunDeps`
-    pi-agent.inputs.nixpkgs.follows = "nixpkgs-unstable";
+    # calls `builtins.filterSource` on subpaths of the pi.nix flake source (coding-agent/bun.nix),
+    # which requires that source derivation to be realised in the local store. On a fresh CI runner
+    # it isn't, so eval aborts with `path '…-source.drv' is not valid`. Works locally only because
+    # the source is already realised there. Re-enable (and revisit upstream) if we start using pi.
+    # pi-agent.url = "github:lukasl-dev/pi.nix";
+    # pi-agent.inputs.nixpkgs.follows = "nixpkgs-unstable";
   };
 
   outputs =

home-manager/modules/common.nix

@@ -8,7 +8,8 @@ let
   inherit (lib.my) mkOpt' dummyOption;
 in
 {
-  imports = [ inputs.pi-agent.homeModules.default ];
+  # Disabled: breaks `nix flake check` in CI (see flake.nix pi-agent note).
+  # imports = [ inputs.pi-agent.homeModules.default ];
 
   options = with lib.types; {
     my = {
@@ -233,7 +234,7 @@ in
           inputs.deploy-rs.overlays.default
           inputs.boardie.overlays.default
           inputs.nixGL.overlays.default
-          inputs.pi-agent.overlays.default
+          # inputs.pi-agent.overlays.default
         ];
         config = {
           allowUnfree = true;

home-manager/modules/gui/default.nix

@@ -88,16 +88,17 @@ in
             ffmpeg-full
             xournalpp
 
-            (pkgs.symlinkJoin {
+            # Disabled: breaks `nix flake check` in CI (see flake.nix pi-agent note).
-              name = "pi-coding-agent";
+            # (pkgs.symlinkJoin {
-              buildInputs = [ pkgs.makeWrapper ];
+            #   name = "pi-coding-agent";
-              paths = [ pkgs.pi-coding-agent-bun ];
+            #   buildInputs = [ pkgs.makeWrapper ];
-              postBuild = ''
+            #   paths = [ pkgs.pi-coding-agent-bun ];
-                wrapProgram $out/bin/pi \
+            #   postBuild = ''
-                  --set NPM_CONFIG_PREFIX ${config.home.homeDirectory}/.pi/npm/ \
+            #     wrapProgram $out/bin/pi \
-                  --prefix PATH : ${pkgs.lib.makeBinPath [ pkgs.nodejs_latest ]}
+            #       --set NPM_CONFIG_PREFIX ${config.home.homeDirectory}/.pi/npm/ \
-              '';
+            #       --prefix PATH : ${pkgs.lib.makeBinPath [ pkgs.nodejs_latest ]}
-            })
+            #   '';
+            # })
           ];
         };
 

nixos/modules/common.nix

@@ -83,7 +83,7 @@ in
           inputs.boardie.overlays.default
           inputs.copyparty.overlays.default
           inputs.hass-west-wood.overlays.default
-          inputs.pi-agent.overlays.default
+          # inputs.pi-agent.overlays.default
         ];
         config = {
           allowUnfree = true;