5pkgs: fix nix flake show compatibility

Integrate nix-writers flake for extended writer functions (writeJq,
writeGawkBin, etc.) using a fixpoint overlay so functions can reference
each other.

Update Python packages to new buildPythonPackage format:
- Add pyproject = true and build-system for ovh-zone, python-dnsstamps,
  ssh-audit, tinc_graphs

Fix writer function usage by taking them as arguments instead of
accessing via pkgs:
- nixos-format-error, untilport, qrscan, logf, gitignore, urix, etc.

Update deprecated nixpkgs attribute names:
- gdk_pixbuf -> gdk-pixbuf
- libSM/libX11/libXinerama -> xorg.*
- buildGo120Module -> buildGoModule

Remove obsolete/broken packages:
- buildbot-classic-slave (missing buildbot-classic)
- cac-panel, drivedroid-gen-repo (Python 2 / format issues)
- games-user-env, generate-secrets (unused)
- internetarchive, bepasty-client-cli, krebspaste (Python 2)
- qrscan (conflicts with removed nixpkgs package)

Other fixes:
- Use lib.callPackageWith for package interdependencies
- Only export derivations in flake packages output
- Limit packages output to Linux systems
- Fix IFD in ukrepl by passing path to writer instead of readFile
- Import stockholm.lib directly where needed (bling)
- Rewrite brain and git-hooks to use runCommand

1 files changed, 35 insertions, 2 deletions

diff --git a/flake.lock b/flake.lock
index 1774af4dd..b11c289b4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -44,6 +44,21 @@
         "type": "github"
       }
     },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1676283394,
+        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "hercules-ci-effects": {
       "inputs": {
         "flake-parts": [
@@ -70,7 +85,10 @@
       }
     },
     "nix-writers": {
-      "flake": false,
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
       "locked": {
         "lastModified": 1677612737,
         "narHash": "sha256-UaCKZ4PbMZU6UZH7XNFcjRtd5jheswl66rjZDBfQgp8=",
@@ -87,6 +105,21 @@
     },
     "nixpkgs": {
       "locked": {
+        "lastModified": 1677608380,
+        "narHash": "sha256-k82O23qBAK+43X0KSBjsMYXG2x4kWWXeAmpPTc2KRGY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4aba90e89f6d4ac6138939961f62842bd94ec929",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
         "lastModified": 1760878510,
         "narHash": "sha256-K5Osef2qexezUfs0alLvZ7nQFTGS9DL2oTVsIXsqLgs=",
         "owner": "NixOS",
@@ -105,7 +138,7 @@
       "inputs": {
         "buildbot-nix": "buildbot-nix",
         "nix-writers": "nix-writers",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs_2"
       }
     },
     "treefmt-nix": {