chore: update flake inputs

Adds a guardrails submodule option to coding.agents.pi that:
- Generates ~/.pi/agent/extensions/guardrails.json when enabled
- Automatically injects @aliou/pi-guardrails package into settings.packages
- Provides structured options for policies, pathAccess, and permissionGate

The module generates the JSON config that pi-guardrails reads for
its security hooks (policies, permission-gate, path-access).

Limitations documented in option descriptions:
- Path access checks are lexical (not symlink-safe)
- Local project guardrails.json can override global rule IDs

.beads/issues.jsonl

@@ -0,0 +1 @@
+{"id":"nixpkgs-ng1","title":"Configure agent git identity in nixpkgs repo","description":"Git commits are using p@m3ta.dev instead of m3ta-chiron@agentmail.to. The GIT_AUTHOR_NAME and GIT_AUTHOR_EMAIL environment variables are not set in this environment. Need to configure the agent git identity for this repository following the pattern in AGENTS.md","status":"open","priority":2,"issue_type":"task","owner":"p@m3ta.dev","created_at":"2026-04-27T18:16:17Z","created_by":"m3tm3re","updated_at":"2026-04-27T18:16:17Z","dependency_count":0,"dependent_count":0,"comment_count":0}

flake.lock

@@ -3,11 +3,11 @@
     "agents": {
       "flake": false,
       "locked": {
-        "lastModified": 1776092721,
-        "narHash": "sha256-avV4Snqp0K57I9s8D61+GHlg9DYZFSIvjaS4d4RYpG8=",
+        "lastModified": 1777399938,
+        "narHash": "sha256-xXPqUQezDdDtF8MbpZnwD1HkybOYwF92evx8rJ6OXCU=",
         "ref": "refs/heads/master",
-        "rev": "0ad41acb03eee0e22cba611b2171a3d3ee30cb10",
-        "revCount": 72,
+        "rev": "9a91f1ee0cf011a7eaf1f16a9e17610b0457e055",
+        "revCount": 85,
         "type": "git",
         "url": "https://code.m3ta.dev/m3tam3re/AGENTS"
       },
@@ -39,11 +39,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1775423009,
-        "narHash": "sha256-vPKLpjhIVWdDrfiUM8atW6YkIggCEKdSAlJPzzhkQlw=",
+        "lastModified": 1777268161,
+        "narHash": "sha256-bxrdOn8SCOv8tN4JbTF/TXq7kjo9ag4M+C8yzzIRYbE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "68d8aa3d661f0e6bd5862291b5bb263b2a6595c9",
+        "rev": "1c3fe55ad329cbcb28471bb30f05c9827f724c76",
         "type": "github"
       },
       "original": {
@@ -55,11 +55,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1775657231,
-        "narHash": "sha256-DP8FfybiZPp5WLB9eIk0TC2mdvuYzxLGgrBODDrwPEI=",
+        "lastModified": 1777643636,
+        "narHash": "sha256-7vvm5Ia8o3g7YNErFcDsbCx+Pk8HbnA+ZYuA5Zga7hY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4e03baaa39b7746eac5704d623461422131cd03d",
+        "rev": "da2366fac507ce7bd31852e7351e55b951656999",
         "type": "github"
       },
       "original": {
@@ -69,27 +69,6 @@
         "type": "github"
       }
     },
-    "opencode": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs-master"
-        ]
-      },
-      "locked": {
-        "lastModified": 1775782812,
-        "narHash": "sha256-m+Ue7FWiTjKMAn1QefAwOMfOb2Vybk0mJPV9zcbkOmE=",
-        "owner": "anomalyco",
-        "repo": "opencode",
-        "rev": "877be7e8e04142cd8fbebcb5e6c4b9617bf28cce",
-        "type": "github"
-      },
-      "original": {
-        "owner": "anomalyco",
-        "ref": "v1.4.3",
-        "repo": "opencode",
-        "type": "github"
-      }
-    },
     "openspec": {
       "inputs": {
         "nixpkgs": [
@@ -97,11 +76,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1775372219,
-        "narHash": "sha256-MJakKC026Sarz7nMmiFrfONWc4xgaw8ApV0Hhp4ebhM=",
+        "lastModified": 1777556999,
+        "narHash": "sha256-HfFlRwR8IMjudRttN4T8L3DJKnNlpWfeNzQPly/HaRY=",
         "owner": "Fission-AI",
         "repo": "OpenSpec",
-        "rev": "64d476f8b924bb9b74b896ea0aa784970e37da69",
+        "rev": "347f0277e3be3549cd85cdea364fbd7710f1922b",
         "type": "github"
       },
       "original": {
@@ -116,7 +95,6 @@
         "basecamp": "basecamp",
         "nixpkgs": "nixpkgs",
         "nixpkgs-master": "nixpkgs-master",
-        "opencode": "opencode",
         "openspec": "openspec"
       }
     }

flake.nix

@@ -10,12 +10,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    # opencode needs newer bun from master
-    opencode = {
-      url = "github:anomalyco/opencode/v1.4.3";
-      inputs.nixpkgs.follows = "nixpkgs-master";
-    };
-
     # openspec - spec-driven development for AI coding assistants
     openspec = {
       url = "github:Fission-AI/OpenSpec";

modules/home-manager/coding/agents/pi.nix

@@ -202,6 +202,38 @@
           See pi docs/settings.md for all options.
         '';
       };
+
+      # ── Pi Guardrails ─────────────────────────────────────────────
+      guardrails = mkOption {
+        type = types.nullOr (types.submodule {
+          options = {
+            enable =
+              mkEnableOption
+              ("Generate ~/.pi/agent/extensions/guardrails.json for pi-guardrails. "
+                + "Adds @aliou/pi-guardrails to packages automatically.");
+
+            config = mkOption {
+              type = types.attrsOf types.anything;
+              default = {};
+              description = ''
+                Guardrails configuration written to ~/.pi/agent/extensions/guardrails.json.
+                See https://github.com/aliou/pi-guardrails for config schema.
+
+                IMPORTANT: Path access checks are lexical (not symlink-safe).
+                Local project .pi/extensions/guardrails.json can override same rule IDs
+                (memory > local > global > defaults). For immutable global policies,
+                consider a wrapper or upstream patch.
+              '';
+            };
+          };
+        });
+        default = null;
+        description = ''
+          Pi Guardrails security configuration.
+          Generates ~/.pi/agent/extensions/guardrails.json when enabled.
+          The @aliou/pi-guardrails package is added to settings.packages automatically.
+        '';
+      };
     };
 
   config = with lib; let
@@ -224,8 +256,37 @@
           attrs
         );
 
+      # Base settings (already filtered)
       piSettings = filterNulls cfg.settings;
 
+      # Guardrails package to inject when guardrails is enabled
+      guardrailsPackage = "npm:@aliou/pi-guardrails@0.11.1";
+
+      # Guardrails config (only when guardrails is enabled)
+      guardrailsJson =
+        if (cfg.guardrails != null && cfg.guardrails.enable)
+        then builtins.toJSON cfg.guardrails.config
+        else null;
+
+      # Merge guardrails package into settings.packages when guardrails is enabled
+      piSettingsWithGuardrails = let
+        baseSettings = cfg.settings;
+        basePackages = baseSettings.packages or [];
+        hasGuardrailsPackage =
+          lib.any
+          (p:
+            lib.hasPrefix "npm:@aliou/pi-guardrails" p
+            || (lib.hasPrefix "git:" p && lib.hasSuffix "/pi-guardrails" p))
+          basePackages;
+        packagesWithGuardrails =
+          if (cfg.guardrails != null && cfg.guardrails.enable && !hasGuardrailsPackage)
+          then basePackages ++ [guardrailsPackage]
+          else basePackages;
+      in
+        if packagesWithGuardrails != basePackages
+        then filterNulls (baseSettings // {packages = packagesWithGuardrails;})
+        else piSettings;
+
       # Coding rules config for renderForPi (only when both agentsInput and codingRules are set)
       piCodingRules =
         if cfg.agentsInput != null && cfg.codingRules != null
@@ -269,10 +330,16 @@
 
         # ── ~/.pi/agent/settings.json ──────────────────────────────────
         {
-          ".pi/agent/settings.json".text = builtins.toJSON piSettings;
+          ".pi/agent/settings.json".text = builtins.toJSON piSettingsWithGuardrails;
           ".pi/agent/settings.json".force = true;
         }
 
+        # ── pi-guardrails config ─────────────────────────────────────
+        (mkIf (guardrailsJson != null) {
+          ".pi/agent/extensions/guardrails.json".text = guardrailsJson;
+          ".pi/agent/extensions/guardrails.json".force = true;
+        })
+
         # ── AGENTS.md — agent descriptions and specialist listing ──────
         (mkIf (cfg.agentsInput != null) {
           ".pi/agent/AGENTS.md".source = "${rendered}/AGENTS.md";

pkgs/code2prompt/default.nix

@@ -1,40 +0,0 @@
-{
-  lib,
-  fetchFromGitHub,
-  nix-update-script,
-  rustPlatform,
-  pkg-config,
-  perl,
-  openssl,
-}:
-rustPlatform.buildRustPackage rec {
-  pname = "code2prompt";
-  version = "4.2.0";
-
-  src = fetchFromGitHub {
-    owner = "mufeedvh";
-    repo = "code2prompt";
-    rev = "v${version}";
-    hash = "sha256-Gh8SsSTZW7QlyyC3SWJ5pOK2x85/GT7+LPJn2Jeczpc=";
-  };
-
-  cargoLock = {
-    lockFile = src + "/Cargo.lock";
-  };
-
-  buildAndTestSubdir = "crates/code2prompt";
-
-  nativeBuildInputs = [pkg-config perl];
-
-  buildInputs = [openssl];
-
-  passthru.updateScript = nix-update-script {};
-
-  meta = with lib; {
-    description = "A CLI tool that converts your codebase into a single LLM prompt with a source tree, prompt templating, and token counting";
-    homepage = "https://github.com/mufeedvh/code2prompt";
-    license = licenses.mit;
-    platforms = platforms.linux;
-    mainProgram = "code2prompt";
-  };
-}

pkgs/default.nix

@@ -18,7 +18,6 @@ in {
 
   sidecar = pkgs.callPackage ./sidecar {};
   td = pkgs.callPackage ./td {};
-  code2prompt = pkgs.callPackage ./code2prompt {};
   eigent = pkgs.callPackage ./eigent {};
   hyprpaper-random = pkgs.callPackage ./hyprpaper-random {};
   launch-webapp = pkgs.callPackage ./launch-webapp {};
@@ -39,13 +38,4 @@ in {
 
   basecamp = inputs.basecamp.packages.${system}.default;
   openspec = inputs.openspec.packages.${system}.default;
-
-  # ── Modified packages ────────────────────────────────────────────
-  # Imported from flake inputs but built with local overrides.
-
-  # inputs.opencode is used for:
-  #   - opencode binary (copied into the Tauri sidecars directory)
-  #   - node_modules (with FOD hash fix for upstream issue #11755)
-  #   - src + patches (via inputs.opencode)
-  opencode-desktop = pkgs.callPackage ./opencode-desktop {inherit inputs;};
 }

pkgs/kestractl/sources.json

@@ -1,13 +1,13 @@
 {
-  "version": "1.2.2",
+  "version": "1.3.0",
   "sources": {
     "aarch64-linux": {
-      "url": "https://github.com/kestra-io/kestractl/releases/download/1.2.2/kestractl_1.2.2_linux_arm64.tar.gz",
-      "hash": "sha256-sidFsCZPnJ07PM5QayPBqaqlBBJTLEdecfd0AWnL7Yo="
+      "url": "https://github.com/kestra-io/kestractl/releases/download/1.3.0/kestractl_1.3.0_linux_arm64.tar.gz",
+      "hash": "sha256-/18F6CZnnLbet4BmI1oQ5pZWkJwIshCq30qd+cm0GGA="
     },
     "x86_64-linux": {
-      "url": "https://github.com/kestra-io/kestractl/releases/download/1.2.2/kestractl_1.2.2_linux_amd64.tar.gz",
-      "hash": "sha256-0C2naN2ougBJSY2z2m6eORnLkLen87HD+a+gvtrUvdw="
+      "url": "https://github.com/kestra-io/kestractl/releases/download/1.3.0/kestractl_1.3.0_linux_amd64.tar.gz",
+      "hash": "sha256-xmsBiqNKvob8xHDyU253o6c25YIubHanNdLqzWaOvSA="
     }
   }
 }

pkgs/mem0/default.nix

@@ -6,14 +6,14 @@
 }:
 python3.pkgs.buildPythonPackage rec {
   pname = "mem0ai";
-  version = "1.0.9";
+  version = "2.0.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "mem0ai";
     repo = "mem0";
     rev = "v${version}";
-    hash = "sha256-tcWH5VbjIBSHinfjirxbUhxqgU0xOUlcHTQHraMuALg=";
+    hash = "sha256-lNSE0Yit+FmM8opC4XYtfVef7JfGd3wMKbLj67Kp4Qw=";
   };
 
   # Relax Python dependency version constraints

pkgs/n8n/default.nix

@@ -26,20 +26,20 @@
 in
   stdenv.mkDerivation (finalAttrs: {
     pname = "n8n";
-    version = "2.17.5";
+    version = "2.18.5";
 
     src = fetchFromGitHub {
       owner = "n8n-io";
       repo = "n8n";
       tag = "n8n@${finalAttrs.version}";
-      hash = "sha256-JwPrQOohXXeuUEcr5S+41ZElBJ3TxR3cgT45CjbzyR4=";
+      hash = "sha256-ws0DXGQFR+z3nVyd4Yn9pIM7yh+H6GnuCRSLxgvtPxo=";
     };
 
     pnpmDeps = fetchPnpmDeps {
       inherit (finalAttrs) pname version src;
       pnpm = pnpm_10;
       fetcherVersion = 3;
-      hash = "sha256-MBSxAsZXCaxwQpstJVxOOCIAE+0RqwlIrgXtE/hiTJM=";
+      hash = "sha256-Ajgne0neNm6HgMK6z3jnEkUJJxVOTgzjpSaMaJgIndQ=";
     };
 
     nativeBuildInputs =

pkgs/n8n/update.sh

@@ -1,8 +1,29 @@
 #!/usr/bin/env nix-shell
-#!nix-shell --pure -i bash -p bash curl jq nix-update cacert git
+#!nix-shell -i bash -p bash curl jq nix-update cacert git nix
 set -euo pipefail
 
-# n8n now publishes two releases per version: a "stable" tag and a "n8n@X.Y.Z" versioned tag.
-# Skip the "stable" tag and get the actual version from the next release.
-new_version="$(curl -s "https://api.github.com/repos/n8n-io/n8n/releases" | jq --raw-output 'map(select(.tag_name != "stable")) | .[0].tag_name | ltrimstr("n8n@")')"
-nix-update n8n --flake --version "$new_version"
+# n8n releases are published with two tags per version:
+#   - "n8n@X.Y.Z" - the versioned tag
+#   - "stable"   - always points to the latest stable version
+#
+# We query the "stable" tag and extract the version from its target commitish (e.g., "release/2.18.5").
+# This ensures we always get the actual latest stable version, not the most recently created tag.
+
+set -euo pipefail
+
+# Get the directory where this script lives (should be pkgs/n8n/)
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# Get the nixpkgs root (parent of pkgs/)
+nixpkgs_root="$(cd "$script_dir/../.." && pwd)"
+
+cd "$nixpkgs_root"
+
+# Query the "stable" tag and extract version from target_commitish (e.g., "release/2.18.5")
+new_version=$(curl -s "https://api.github.com/repos/n8n-io/n8n/releases/tags/stable" | jq --raw-output '.target_commitish | ltrimstr("release/")')
+
+echo "Latest stable version: n8n@${new_version}"
+echo "Running from: $(pwd)"
+
+# Use --flake --system to properly evaluate the flake-based package
+nix-update --flake --system x86_64-linux n8n --version "$new_version"

pkgs/opencode-desktop/default.nix

@@ -1,114 +0,0 @@
-{
-  lib,
-  stdenv,
-  symlinkJoin,
-  makeWrapper,
-  rustPlatform,
-  pkg-config,
-  cargo-tauri,
-  bun,
-  nodejs,
-  cargo,
-  rustc,
-  jq,
-  wrapGAppsHook4,
-  dbus,
-  glib,
-  gtk4,
-  libsoup_3,
-  librsvg,
-  libappindicator,
-  glib-networking,
-  openssl,
-  webkitgtk_4_1,
-  gst_all_1,
-  inputs ? null,
-}: let
-  # Get upstream opencode package for shared attributes
-  opencode = inputs.opencode.packages.${stdenv.hostPlatform.system}.default;
-
-  # Workaround for https://github.com/anomalyco/opencode/issues/11755
-  # Upstream is missing outputHashes for git dependencies
-  # Also fix stale npm deps hash in upstream node_modules FOD
-  fixedNodeModules = opencode.node_modules.overrideAttrs {
-    outputHash = "sha256-285KZ7rZLRoc6XqCZRHc25NE+mmpGh/BVeMpv8aPQtQ=";
-  };
-
-  opencode-desktop = rustPlatform.buildRustPackage (finalAttrs: {
-    pname = "opencode-desktop";
-    version = opencode.version;
-    src = opencode.src;
-    node_modules = fixedNodeModules;
-    patches = opencode.patches;
-
-    cargoRoot = "packages/desktop/src-tauri";
-    cargoLock = {
-      lockFile = finalAttrs.src + "/packages/desktop/src-tauri/Cargo.lock";
-      outputHashes = {
-        "specta-2.0.0-rc.22" = "sha256-YsyOAnXELLKzhNlJ35dHA6KGbs0wTAX/nlQoW8wWyJQ=";
-        "tauri-2.9.5" = "sha256-dv5E/+A49ZBvnUQUkCGGJ21iHrVvrhHKNcpUctivJ8M=";
-        "tauri-specta-2.0.0-rc.21" = "sha256-n2VJ+B1nVrh6zQoZyfMoctqP+Csh7eVHRXwUQuiQjaQ=";
-      };
-    };
-    buildAndTestSubdir = finalAttrs.cargoRoot;
-
-    nativeBuildInputs =
-      [pkg-config cargo-tauri.hook bun nodejs cargo rustc jq makeWrapper]
-      ++ lib.optionals stdenv.hostPlatform.isLinux [wrapGAppsHook4];
-
-    buildInputs = lib.optionals stdenv.isLinux [
-      dbus
-      glib
-      gtk4
-      libsoup_3
-      librsvg
-      libappindicator
-      glib-networking
-      openssl
-      webkitgtk_4_1
-      gst_all_1.gstreamer
-      gst_all_1.gst-plugins-base
-      gst_all_1.gst-plugins-good
-      gst_all_1.gst-plugins-bad
-    ];
-
-    strictDeps = true;
-
-    preBuild = ''
-      cp -a ${finalAttrs.node_modules}/{node_modules,packages} .
-      chmod -R u+w node_modules packages
-      patchShebangs node_modules
-      patchShebangs packages/desktop/node_modules
-
-      mkdir -p packages/desktop/src-tauri/sidecars
-      cp ${opencode}/bin/opencode packages/desktop/src-tauri/sidecars/opencode-cli-${stdenv.hostPlatform.rust.rustcTarget}
-    '';
-
-    tauriBuildFlags = ["--config" "tauri.prod.conf.json" "--no-sign"];
-
-    postFixup = lib.optionalString stdenv.hostPlatform.isLinux ''
-      mv $out/bin/OpenCode $out/bin/opencode-desktop
-      sed -i 's|^Exec=OpenCode$|Exec=opencode-desktop|' $out/share/applications/OpenCode.desktop
-    '';
-  });
-  # Wrapper for Wayland support
-in
-  symlinkJoin {
-    name = "opencode-desktop";
-    paths = [opencode-desktop];
-
-    nativeBuildInputs = [makeWrapper];
-
-    postBuild = ''
-      wrapProgram $out/bin/opencode-desktop \
-        --run 'if [[ "$NIXOS_OZONE_WL" == "1" ]]; then export OC_ALLOW_WAYLAND=1; fi'
-    '';
-
-    meta = {
-      description = "OpenCode Desktop App with Wayland support";
-      homepage = "https://opencode.ai";
-      license = lib.licenses.mit;
-      platforms = lib.platforms.linux;
-      mainProgram = "opencode-desktop";
-    };
-  }

pkgs/sidecar/default.nix

@@ -13,16 +13,16 @@
 }:
 buildGoModule (finalAttrs: {
   pname = "sidecar";
-  version = "0.83.0";
+  version = "0.84.0";
 
   src = fetchFromGitHub {
     owner = "marcus";
     repo = "sidecar";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-L6q2eZO1rNngWwHVhBJ2ftVbvYTConpqYHEb3nwiXxs=";
+    hash = "sha256-80ldZlaZ99ti8dvw+Awev7ucz03iOVD2yzz/+IFHDvA=";
   };
 
-  vendorHash = "sha256-fIaHzc0L4jwVSh/YjrXBB7nENqCgOfHF5bnljFsGbVo=";
+  vendorHash = "sha256-IDD+hQZODNPj+Gy9CX5GFdMcsvt75aFLpabXZehAjaw=";
 
   subPackages = ["cmd/sidecar"];
 

pkgs/td/default.nix

@@ -9,13 +9,13 @@
 }:
 buildGoModule (finalAttrs: {
   pname = "td";
-  version = "0.43.0";
+  version = "0.44.0";
 
   src = fetchFromGitHub {
     owner = "marcus";
     repo = "td";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-DwzuXumEEQWfZW+GbbY9kyqkEFZQ9sC+sSbVxfrY6bM=";
+    hash = "sha256-k1OCK6LE99fHLuxv8HZUW8cSn2Wmk74J7kb6Mi5ZpVw=";
   };
 
   vendorHash = "sha256-hFFG+vLXcL2NNdLQvQZ1hzu++pp5AkbFOPQS10wtsec=";

shells/coding.nix

@@ -57,7 +57,6 @@ in
       customPackages.sidecar
 
       # Code analysis tools
-      customPackages.code2prompt
 
       # Nix development tools (for this repo)
       nil