diff --git a/nvim/lazy-lock.json b/nvim/lazy-lock.json
index 209a1a2..1e33022 100644
--- a/nvim/lazy-lock.json
+++ b/nvim/lazy-lock.json
@@ -1,5 +1,6 @@
 {
   "ChatGPT.nvim": { "branch": "main", "commit": "df53728e05129278d6ea26271ec086aa013bed90" },
+  "CopilotChat.nvim": { "branch": "canary", "commit": "bac4dcc894332eddc989758d875cab84ab52944d" },
   "LazyVim": { "branch": "main", "commit": "c6e8c5b45011210042e0791bd52baff8784ed26a" },
   "LuaSnip": { "branch": "master", "commit": "de1a287c9cb525ae52bc846e8f6207e5ef1da5ac" },
   "SchemaStore.nvim": { "branch": "main", "commit": "9a5992a881583d886bfbb46631a09f736f0fae50" },
diff --git a/nvim/lua/plugins/copilot-chat.lua b/nvim/lua/plugins/copilot-chat.lua
new file mode 100644
index 0000000..dac6927
--- /dev/null
+++ b/nvim/lua/plugins/copilot-chat.lua
@@ -0,0 +1,13 @@
+-- Chat with GitHub Copilot in Neovim
+-- https://github.com/CopilotC-Nvim/CopilotChat.nvim
+return {
+  {
+    "CopilotC-Nvim/CopilotChat.nvim",
+    branch = "canary",
+    dependencies = {
+      { "zbirenbaum/copilot.lua" }, -- or github/copilot.vim
+      { "nvim-lua/plenary.nvim" }, -- for curl, log wrapper
+    },
+    opts = {},
+  },
+}
diff --git a/setup/lua.sh b/setup/lua.sh
index 30b2b17..e35d11e 100755
--- a/setup/lua.sh
+++ b/setup/lua.sh
@@ -1,7 +1,9 @@
 #!/bin/sh
 
 asdf plugin add lua
+asdf install lua 5.1
 asdf install lua latest
 asdf global lua latest
 
 luarocks install --server=https://luarocks.org/dev luaformatter
+sudo luarocks install --lua-version 5.1 tiktoken_core
diff --git a/setup/rust.sh b/setup/rust.sh
index 5e5af9d..f92299a 100755
--- a/setup/rust.sh
+++ b/setup/rust.sh
@@ -1,4 +1,4 @@
- #!/bin/sh
+#!/bin/sh
 
 asdf plugin add rust
 asdf install rust latest