diff --git a/nvim/lua/plugins/blink-cmp.lua.bak b/nvim/lua/plugins/blink-cmp.lua.bak
deleted file mode 100644
index 73b0dd2..0000000
--- a/nvim/lua/plugins/blink-cmp.lua.bak
+++ /dev/null
@@ -1,76 +0,0 @@
-return {
-  {
-    "saghen/blink.cmp",
-    -- optional: provides snippets for the snippet source
-    dependencies = { "rafamadriz/friendly-snippets" },
-
-    -- use a release tag to download pre-built binaries
-    version = "1.*",
-    -- AND/OR build from source, requires nightly: https://rust-lang.github.io/rustup/concepts/channels.html#working-with-nightly-rust
-    -- build = 'cargo build --release',
-    -- If you use nix, you can build from source using latest nightly rust with:
-    -- build = 'nix run .#build-plugin',
-
-    ---@module 'blink.cmp'
-    ---@type blink.cmp.Config
-    opts = {
-      -- 'default' (recommended) for mappings similar to built-in completions (C-y to accept)
-      -- 'super-tab' for mappings similar to vscode (tab to accept)
-      -- 'enter' for enter to accept
-      -- 'none' for no mappings
-      --
-      -- All presets have the following mappings:
-      -- C-space: Open menu or open docs if already open
-      -- C-n/C-p or Up/Down: Select next/previous item
-      -- C-e: Hide menu
-      -- C-k: Toggle signature help (if signature.enabled = true)
-      --
-      -- See :h blink-cmp-config-keymap for defining your own keymap
-      keymap = {
-
-        preset = "default",
-
-        ["<C-space>"] = { "show", "show_documentation", "hide_documentation" },
-        ["<C-e>"] = { "hide" },
-        ["<C-y>"] = { "select_and_accept" },
-
-        ["<Up>"] = { "select_prev", "fallback" },
-        ["<Down>"] = { "select_next", "fallback" },
-        ["<C-p>"] = { "select_prev", "fallback_to_mappings" },
-        ["<C-n>"] = { "select_next", "fallback_to_mappings" },
-
-        ["<C-b>"] = { "scroll_documentation_up", "fallback" },
-        ["<C-f>"] = { "scroll_documentation_down", "fallback" },
-
-        ["<Tab>"] = { "snippet_forward", "fallback" },
-        ["<S-Tab>"] = { "snippet_backward", "fallback" },
-
-        ["<C-k>"] = { "show_signature", "hide_signature", "fallback" },
-      },
-
-      appearance = {
-        -- 'mono' (default) for 'Nerd Font Mono' or 'normal' for 'Nerd Font'
-        -- Adjusts spacing to ensure icons are aligned
-        nerd_font_variant = "mono",
-      },
-
-      -- (Default) Only show the documentation popup when manually triggered
-      completion = { documentation = { auto_show = true } },
-
-      -- Default list of enabled providers defined so that you can extend it
-      -- elsewhere in your config, without redefining it, due to `opts_extend`
-      sources = {
-        -- default = { 'lsp', 'path', 'snippets', 'buffer' }, <- original
-        default = { "lsp", "path" },
-      },
-
-      -- (Default) Rust fuzzy matcher for typo resistance and significantly better performance
-      -- You may use a lua implementation instead by using `implementation = "lua"` or fallback to the lua implementation,
-      -- when the Rust fuzzy matcher is not available, by using `implementation = "prefer_rust"`
-      --
-      -- See the fuzzy documentation for more information
-      fuzzy = { implementation = "prefer_rust_with_warning" },
-    },
-    opts_extend = { "sources.default" },
-  },
-}
diff --git a/nvim/lua/plugins/blink-completion.lua b/nvim/lua/plugins/blink-completion.lua
new file mode 100644
index 0000000..25674f2
--- /dev/null
+++ b/nvim/lua/plugins/blink-completion.lua
@@ -0,0 +1,39 @@
+return {
+  "saghen/blink.cmp",
+  ---@param opts blink.cmp.Config
+  opts = function(_, opts)
+    -- Start with completion disabled in the current buffer.
+    -- Remove this line if you want it enabled by default.
+    vim.b.completion = false
+
+    -- Toggle completion per-buffer with <leader>uk
+    Snacks.toggle({
+      name = "Completion",
+      get = function()
+        -- treat anything except explicit false as "on"
+        return vim.b.completion ~= false
+      end,
+      set = function(state)
+        vim.b.completion = state
+      end,
+    }):map("<leader>uk")
+
+    -- Override Blink's global enabled() logic
+    opts.enabled = function()
+      -- 1) Hard-disable completion for markdown buffers
+      if vim.bo.filetype == "markdown" or vim.bo.filetype == "markdown.mdx" then
+        return false
+      end
+
+      -- 2) Keep Blink's default "no completion in prompt buffers"
+      if vim.bo.buftype == "prompt" then
+        return false
+      end
+
+      -- 3) Respect the per-buffer toggle
+      return vim.b.completion ~= false
+    end
+
+    return opts
+  end,
+}