Re-add keybindings

home-manager/common/software/cli/nixvim.nix

@@ -11,6 +11,38 @@
         globals.mapleader = " ";
         globals.maplocalleader = " ";
 
+        keymaps = let
+            map = mode: key: action: { mode = mode; key = key; action = action; };
+            nmap = key: action: map [ "n" ] key action;
+            nvmap = key: action: map [ "n" "v" ] key action;
+            imap = key: action: map [ "i" ] key action;
+            desc = d: { options.desc = d; };
+            silent = { options.silent = true; };
+            expr = { options.expr = true; };
+        in [
+            # Unmap keys that aren't useful, or that we want to use for different things
+            (nvmap "<Space>" "<Nop>" // silent)
+            (nvmap "<Cr>" "<Nop>" // silent)
+            (nvmap "s" "<Nop>" // silent)
+            # Leave insert mode by pressing j and k simultaneously
+            (imap "jk" "<Esc>")
+            (imap "kj" "<Esc>")
+            # Redo
+            (nmap "R" "<C-r>")
+            # Copy and paste
+            (nvmap "<leader>y" "\"+y" // desc "Cop[y] to clipboard")
+            (nvmap "<leader>p" "\"+p" // desc "[P]aste from clipboard")
+            # Jump to start/end of line
+            (nvmap "H" "0")
+            (nvmap "L" "$")
+            # Navigate up and down word wrapped text as if it were not word wrapped
+            (nmap "k" "v:count == 0 ? 'gk' : 'k'" // silent // expr)
+            (nmap "j" "v:count == 0 ? 'gj' : 'j'" // silent // expr)
+            # Center cursor when jumping foward or back
+            (nmap "<C-o>" "<C-o>zz")
+            (nmap "<C-i>" "<C-i>zz")
+        ];
+
         options = {
             number = true;
             shiftwidth = 2;