build(flake): use typix

flake.lock

@@ -37,7 +37,9 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "typix": "typix",
+        "typst-packages": "typst-packages"
       }
     },
     "systems": {
@@ -54,6 +56,42 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "typix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1738982361,
+        "narHash": "sha256-QWDOo/+9pGu63knSlrhPiESSC+Ij/QYckC3yH8QPK4k=",
+        "owner": "loqusion",
+        "repo": "typix",
+        "rev": "bdb42d3e9a8722768e2168e31077129207870f92",
+        "type": "github"
+      },
+      "original": {
+        "owner": "loqusion",
+        "repo": "typix",
+        "type": "github"
+      }
+    },
+    "typst-packages": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1739953413,
+        "narHash": "sha256-wwMCLTFWEJvyQZMZ+N30LrG9w6FfoWfp9tzCt4BXFQc=",
+        "owner": "typst",
+        "repo": "packages",
+        "rev": "7752964daa3196be81af765fa0dedb7b3661da22",
+        "type": "github"
+      },
+      "original": {
+        "owner": "typst",
+        "repo": "packages",
+        "type": "github"
+      }
     }
   },
   "root": "root",