Update flake and README

README.md

@@ -16,6 +16,7 @@ Super fast incremental analysis! Scans `all-packages.nix` in less than 0.1s and
   - [x] With expression.
 - [x] Completion. `textDocument/completion`
   - [x] Builtin names.
+    - With documentations.
   - [x] Local bindings and rec-attrset fields.
   - [x] Keywords.
   - [ ] Attrset fields.
@@ -43,6 +44,9 @@ Super fast incremental analysis! Scans `all-packages.nix` in less than 0.1s and
     `vim` would consume 100% CPU and is slow to respond when editing `all-packages.nix`.
     Though our LSP server's CPU usage is quite low.
     Other LSP clients are not tested.
+- [x] Hover text. `textDocument/hover`.
+  - [x] Show kind of names.
+  - [x] Documentation for builtin names.
 - [ ] Cross-file analysis.
 - [ ] Multi-threaded.
 

flake.lock

@@ -17,11 +17,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1663491030,
-        "narHash": "sha256-MVsfBhE9US5DvLtBAaTRjwYdv1tLO8xjahM8qLXTgTo=",
+        "lastModified": 1663819708,
+        "narHash": "sha256-nKyJpwzGoV+5BNLHlrEMawsDxR1i6WOXqTcHWrWE8y4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "767542707d394ff15ac1981e903e005ba69528b5",
+        "rev": "f586d35a11ec07ced41d9d62c125c6ca0006141f",
         "type": "github"
       },
       "original": {
@@ -48,11 +48,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1663470205,
-        "narHash": "sha256-04OnrzLLWWE73GBpIgNR2NfjPH3MiHpwN1ueMQObsAc=",
+        "lastModified": 1663815552,
+        "narHash": "sha256-J4j/d69SGKx1qripBCINe7T3SUtMM1sdj5PoHRThV5Q=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "2ac8be332f507e521c235caa37cb0b2fc698cbd9",
+        "rev": "f45f856ae5a9fe2c48d756fa17bb9c5b3b8070c5",
         "type": "github"
       },
       "original": {