nixos: enable keepbook sync

nixos/flake.lock

@@ -238,6 +238,28 @@
         "type": "github"
       }
     },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "keepbook",
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1769842381,
+        "narHash": "sha256-0dPzo1ElvAIZ0RwEwx5FfqAUiFj22K9QJOU9stiMCrw=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "b2344f384a82db1410ab09769eb8c4a820de667f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -1145,6 +1167,27 @@
         "type": "github"
       }
     },
+    "keepbook": {
+      "inputs": {
+        "fenix": "fenix",
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1770888240,
+        "narHash": "sha256-uDc/CQVg9dUigJtUpO21rE2JIdes7bRo6XYaWSa0asY=",
+        "path": "/home/imalison/Projects/keepbook",
+        "type": "path"
+      },
+      "original": {
+        "path": "/home/imalison/Projects/keepbook",
+        "type": "path"
+      }
+    },
     "mova": {
       "flake": false,
       "locked": {
@@ -1655,6 +1698,7 @@
         "hyprscratch": "hyprscratch",
         "imalison-taffybar": "imalison-taffybar",
         "kanshi-sni": "kanshi-sni",
+        "keepbook": "keepbook",
         "nix": "nix",
         "nixified-ai": "nixified-ai",
         "nixos-hardware": "nixos-hardware",
@@ -1672,6 +1716,23 @@
         "xmonad-contrib": "xmonad-contrib"
       }
     },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1769786006,
+        "narHash": "sha256-ax6cH54Nc20QuxlHNC8RMt1P8quMECY4gaACFAdd5ec=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "eb0588812b041ebbf2645555f2a4df3bcd853c6d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
     "rust-overlay": {
       "inputs": {
         "nixpkgs": [