[development] More TS dev fixes, adds direnv. Fixes some markdown rendering.

flake.lock

@@ -7,16 +7,35 @@
         ]
       },
       "locked": {
-        "lastModified": 1743788974,
-        "narHash": "sha256-2LeVyQZI2wTkSzMLvnN/kJjXVWp4HCVUoq17Bv8TNTk=",
+        "lastModified": 1746040799,
+        "narHash": "sha256-osgPX/SzIpkR50vev/rqoTEAVkEcOWXoQXmbzsaI4KU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "0f5908daf890c3d7e7052bef1d6deb0f2710aaa1",
+        "rev": "5f217e5a319f6c186283b530f8c975e66c028433",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "home-manager-unstable": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1746040799,
+        "narHash": "sha256-osgPX/SzIpkR50vev/rqoTEAVkEcOWXoQXmbzsaI4KU=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "5f217e5a319f6c186283b530f8c975e66c028433",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "master",
         "repo": "home-manager",
         "type": "github"
       }
@@ -68,6 +87,7 @@
     "root": {
       "inputs": {
         "home-manager": "home-manager",
+        "home-manager-unstable": "home-manager-unstable",
         "nixpkgs": "nixpkgs",
         "nixpkgs-stable": "nixpkgs-stable",
         "nixpkgs-unstable": "nixpkgs-unstable",