chore(flake): refresh nixpkgs inputs to 2026-09-11

Bump nixpkgs and nixpkgs-latest from 2026-05/2026-08 to current
nixos-unstable (2026-09-11); both inputs now resolve to the same rev.
Re-validated every package against the new inputs.

Fallout fixed:
- freetoken: upstream pins torch>=2.11,<2.12 and triton==3.6.0, but the new
  nixpkgs only ships torch 2.13 / triton 3.7. Add a nixpkgs-torch211 input
  pinned at the previous revision and build freetoken against it, keeping
  the CUDA 12.9 / torch 2.11 stack unchanged.
- graphify: nixpkgs' pybloomfilter3 0.7.3 ships sdist metadata that still
  says 0.7.2, tripping pythonMetadataCheckPhase; skip that check only.

All 22 packages build and `nix flake check --no-build` passes.

.beads/issues.jsonl

@@ -1,3 +1,4 @@
+{"_type":"issue","id":"nix-overlay-89n","title":"Refresh flake.lock nixpkgs inputs","description":"Update nixpkgs and nixpkgs-latest flake inputs (pinned 2026-05 and 2026-08) to current nixos-unstable, then re-validate package builds.","status":"in_progress","priority":2,"issue_type":"task","assignee":"Alexander Miroshnichenko","owner":"alex@millerson.name","created_at":"2026-09-13T18:40:17Z","created_by":"Alexander Miroshnichenko","updated_at":"2026-09-13T18:40:18Z","started_at":"2026-09-13T18:40:18Z","dependency_count":0,"dependent_count":0,"comment_count":0}
 {"_type":"issue","id":"nix-overlay-cfk","title":"Update all packages to latest upstream versions","description":"Bump every package in packages/ to its latest available upstream version, refresh hashes (src, cargoHash, vendorHash, npm deps, bun2nix, appimage, etc.), verify builds, and update README. Packages: aionui, awg-tool, container-use, desloppify, ds4, freebuff, freetoken, graphify, haivemind, hipengine, kubernetes-mcp-server, llama-cpp, loop, mcp-gateway, nftables-analyzer, nftablesbuilder, omniroute, radar, relay-free-llm, skillsmcp, stakpak, traycer.","status":"closed","priority":2,"issue_type":"task","assignee":"Alexander Miroshnichenko","owner":"alex@millerson.name","created_at":"2026-09-13T13:59:31Z","created_by":"Alexander Miroshnichenko","updated_at":"2026-09-13T18:06:08Z","started_at":"2026-09-13T13:59:35Z","closed_at":"2026-09-13T18:06:08Z","close_reason":"All packages bumped to latest upstream; treefmt clean and nix flake check --no-build passes.","dependency_count":0,"dependent_count":0,"comment_count":0}
 {"_type":"issue","id":"nix-overlay-05o","title":"Add llama-cpp package (build 9645) to overlay","description":"Port the pinned llama.cpp b9645 derivation from nixos-config/modules/llm-engine.nix into packages/llama-cpp/ (default.nix + package.nix). ROCm + Vulkan enabled, znver5 CPU flags, strix-halo gfx1151 orientation. Must build via nix build .#llama-cpp.","status":"closed","priority":2,"issue_type":"feature","assignee":"Alexander Miroshnichenko","owner":"alex@millerson.name","created_at":"2026-09-13T09:22:26Z","created_by":"Alexander Miroshnichenko","updated_at":"2026-09-13T10:33:35Z","started_at":"2026-09-13T09:22:28Z","closed_at":"2026-09-13T10:33:35Z","close_reason":"llama-cpp b9645 packaged in packages/llama-cpp, built and smoke-tested on gfx1151 (ROCm + Vulkan)","dependency_count":0,"dependent_count":0,"comment_count":0}
 {"_type":"issue","id":"nix-overlay-6y6","title":"Add Loop corporate messenger package","description":"Add Loop - Corporate messenger for your team. Distributed as x86-64 binary from https://artifacts.wilix.dev/repository/loop-files/loop-6.0.3/loop-desktop-6.0.3-linux-x64.tar.gz","status":"closed","priority":2,"issue_type":"feature","assignee":"Alexander Miroshnichenko","owner":"alex@millerson.name","created_at":"2026-05-29T16:41:37Z","created_by":"Alexander Miroshnichenko","updated_at":"2026-05-29T16:51:32Z","started_at":"2026-05-29T16:42:02Z","closed_at":"2026-05-29T16:51:32Z","close_reason":"Closed","dependency_count":0,"dependent_count":0,"comment_count":0}

flake.lock

@@ -75,11 +75,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1777954456,
+        "lastModified": 1789149629,
-        "narHash": "sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9+hrDTkDU=",
+        "narHash": "sha256-H6GwaZzZf+4npqv0tph94w9tZddSjFjmQrVsW0z78uk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "549bd84d6279f9852cae6225e372cc67fb91a4c1",
+        "rev": "eaad089433ca2bb662274377d33df3d0e51ef28b",
         "type": "github"
       },
       "original": {
@@ -91,11 +91,11 @@
     },
     "nixpkgs-latest": {
       "locked": {
-        "lastModified": 1785967620,
+        "lastModified": 1789149629,
-        "narHash": "sha256-IItrdb7Puk05RqOBWZYFC5X6Wl1sJmCfh5MWVHw5iMM=",
+        "narHash": "sha256-H6GwaZzZf+4npqv0tph94w9tZddSjFjmQrVsW0z78uk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b7c2ada94fe99c15b0dbcf4d11fd7850b957a436",
+        "rev": "eaad089433ca2bb662274377d33df3d0e51ef28b",
         "type": "github"
       },
       "original": {
@@ -105,6 +105,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-torch211": {
+      "locked": {
+        "lastModified": 1777954456,
+        "narHash": "sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9+hrDTkDU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "549bd84d6279f9852cae6225e372cc67fb91a4c1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "549bd84d6279f9852cae6225e372cc67fb91a4c1",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "blueprint": "blueprint",
@@ -112,6 +128,7 @@
         "flake-parts": "flake-parts",
         "nixpkgs": "nixpkgs",
         "nixpkgs-latest": "nixpkgs-latest",
+        "nixpkgs-torch211": "nixpkgs-torch211",
         "systems": "systems",
         "treefmt-nix": "treefmt-nix"
       }

flake.nix

@@ -6,6 +6,11 @@
     # Newer nixpkgs whose toolchains are required by some packages:
     # rustc >= 1.95 (mcp-gateway >= 3.4.0), go >= 1.26.3 (kubernetes-mcp-server >= 0.0.66).
     nixpkgs-latest.url = "github:NixOS/nixpkgs/nixos-unstable";
+    # freetoken pins torch>=2.11,<2.12 and triton==3.6.0; current
+    # nixos-unstable only ships torch 2.13 / triton 3.7. Keep the previous
+    # nixpkgs revision for freetoken so its CUDA 12.9 / torch 2.11 stack is
+    # unchanged.
+    nixpkgs-torch211.url = "github:NixOS/nixpkgs/549bd84d6279f9852cae6225e372cc67fb91a4c1";
     systems.url = "github:nix-systems/default";
     blueprint = {
       url = "github:numtide/blueprint";

packages/freetoken/default.nix

@@ -1,5 +1,10 @@
 {
   pkgs,
+  inputs,
   ...
 }:
-pkgs.callPackage ./package.nix { }
+# freetoken pins torch>=2.11,<2.12 and triton==3.6.0, but current
+# nixos-unstable ships torch 2.13 + triton 3.7 and no older torch. Build it
+# with the pinned nixpkgs-torch211 revision (CUDA 12.9 / torch-bin 2.11).
+inputs.nixpkgs-torch211.legacyPackages.${pkgs.stdenv.hostPlatform.system}.callPackage ./package.nix
+  { }

packages/graphify/default.nix

@@ -2,4 +2,18 @@
   pkgs,
   ...
 }:
-pkgs.callPackage ./package.nix { }
+# nixpkgs' pybloomfilter3 0.7.3 (a datasketch dependency) ships sdist metadata
+# that still says 0.7.2, which makes pythonMetadataCheckPhase fail even though
+# the build succeeds. Skip only that check.
+let
+  python = pkgs.python3.override {
+    packageOverrides = self: super: {
+      pybloomfilter3 = super.pybloomfilter3.overridePythonAttrs (_: {
+        dontCheckPythonMetadata = true;
+      });
+    };
+  };
+in
+python.pkgs.callPackage ./package.nix {
+  python3Packages = python.pkgs;
+}