npins: pin ghostty dev version

nix/configurations/vanadium.nix

@@ -58,6 +58,7 @@ in
           ../overlays/eepy.nix
           ../overlays/calibre-no-mime.nix
           ../overlays/fcitx5-table-extra-taiwanese.nix
+          ../overlays/ghostty-dev.nix
 
           ../overlays/iosevka.nix
           ../packages/overlay.nix

nix/overlays/ghostty-dev.nix

@@ -0,0 +1,7 @@
+let
+  sources = import ../../npins;
+in
+final: prev: {
+  # Dev version of ghostty, "tip"
+  ghostty = sources.ghostty-dev.asFlake.packages.${final.stdenv.hostPlatform.system}.default;
+}

npins/sources.json

@@ -91,6 +91,19 @@
       "hash": "0g4izwn5k7qpavlk3w41a92rhnp4plr928vmrhc75041vzm3vb1l",
       "frozen": true
     },
+    "ghostty-dev": {
+      "type": "Git",
+      "repository": {
+        "type": "GitHub",
+        "owner": "ghostty-org",
+        "repo": "ghostty"
+      },
+      "branch": "main",
+      "submodules": false,
+      "revision": "45abfa91905a5dafdddb711dd9402d45947cdfbb",
+      "url": "https://github.com/ghostty-org/ghostty/archive/45abfa91905a5dafdddb711dd9402d45947cdfbb.tar.gz",
+      "hash": "1pmfsxd65yva3ij2v20xb5r1hf3mx6lqr593nivnvsi345jnfh1y"
+    },
     "hategroup-dnsbl": {
       "type": "Git",
       "repository": {