feat(linux): add initial xkeysnail config

This allows Linux's keybindings to be a bit more like macOS.

config/xkeysnail/config.py

@@ -0,0 +1,122 @@
+from xkeysnail.transform import *
+from xkeysnail.key import Key
+
+define_modmap({
+    # Treat CAPSLOCK as CTRL.
+    Key.CAPSLOCK: Key.LEFT_CTRL,
+
+    # Ensure ` and ~ key is next to left shift.
+    Key.KEY_102ND: Key.GRAVE,
+    Key.GRAVE: Key.KEY_102ND,
+})
+
+define_keymap(lambda wm_class: wm_class in ("Gnome-terminal", "Guake"), {
+    K("Super-c"): K("C-Shift-c"),
+    K("Super-v"): K("C-Shift-v"),
+}, "Terminal keys")
+
+define_keymap(lambda wm_class: wm_class in ("firefox"), {
+    K("Super-Shift-Left_Brace"): K("C-Shift-tab"),
+    K("Super-Shift-Right_Brace"): K("C-tab"),
+}, "Browser keys")
+
+# Emacs-like keybindings in non-Emacs applications
+define_keymap(lambda wm_class: wm_class not in ("Emacs", "URxvt", "Gnome-terminal", "Guake"), {
+    K("Super-x"): K("C-x"),
+    K("Super-c"): K("C-c"),
+    K("Super-v"): K("C-v"),
+
+    K("Super-a"): K("C-a"),
+    K("Super-l"): K("C-l"),
+    K("Super-t"): K("C-t"),
+
+    # Cursor
+    K("C-b"): with_mark(K("left")),
+    K("C-f"): with_mark(K("right")),
+    K("C-p"): with_mark(K("up")),
+    K("C-n"): with_mark(K("down")),
+    K("C-h"): with_mark(K("backspace")),
+    K("Super-f"): K("C-f"),
+    K("Super-n"): K("C-n"),
+    K("Super-p"): K("C-p"),
+    K("Super-h"): K("C-h"),
+
+    # Forward/Backward word
+    K("M-b"): with_mark(K("C-left")),
+    K("M-f"): with_mark(K("C-right")),
+
+    # Beginning/End of line
+    K("C-a"): with_mark(K("home")),
+    K("C-e"): with_mark(K("end")),
+
+    # Page up/down
+    K("M-v"): with_mark(K("page_up")),
+    K("C-v"): with_mark(K("page_down")),
+
+    # Beginning/End of file
+    K("M-Shift-comma"): with_mark(K("C-home")),
+    K("M-Shift-dot"): with_mark(K("C-end")),
+
+    # Newline
+    K("C-m"): K("enter"),
+    K("C-j"): K("enter"),
+    K("C-o"): [K("enter"), K("left")],
+    K("Super-o"): K("C-o"),
+
+    # Copy
+    K("C-w"): [K("C-x"), set_mark(False)],
+    K("M-w"): [K("C-c"), set_mark(False)],
+    K("C-y"): [K("C-v"), set_mark(False)],
+    K("Super-w"): K("C-w"),
+
+    # Delete
+    K("C-d"): [K("delete"), set_mark(False)],
+    K("M-d"): [K("C-delete"), set_mark(False)],
+    K("Super-d"): K("C-d"),
+
+    # Backspace
+    K("M-backspace"): [K("C-backspace"), set_mark(False)],
+
+    # Kill line
+    # K("C-k"): [K("Shift-end"), K("C-x"), set_mark(False)],
+
+    # Undo
+    K("M-minus"): [K("C-z"), set_mark(False)],
+    # K("C-slash"): [K("C-z"), set_mark(False)],
+    # K("C-Shift-ro"): K("C-z"),
+
+    # Mark
+    K("C-space"): set_mark(True),
+    K("C-M-space"): with_or_set_mark(K("C-right")),
+
+    # Search
+    # K("C-s"): K("F3"),
+    # K("C-r"): K("Shift-F3"),
+    # K("M-Shift-key_5"): K("C-h"),
+    K("Super-s"): K("C-s"),
+
+    # Cancel
+    K("C-g"): [K("esc"), set_mark(False)],
+
+    # Escape
+    K("C-q"): escape_next_key,
+    K("C-left_brace"): K("esc"),
+
+    # C-x YYY
+    K("C-x"): {
+        # C-x h (select all)
+        K("h"): [K("C-home"), K("C-a"), set_mark(True)],
+        # C-x C-f (open)
+        K("C-f"): K("C-o"),
+        # C-x C-s (save)
+        K("C-s"): K("C-s"),
+        # C-x k (kill tab)
+        # K("k"): K("C-f4"),
+        # C-x C-c (exit)
+        # K("C-c"): K("C-q"),
+        # cancel
+        K("C-g"): pass_through_key,
+        # C-x u (undo)
+        # K("u"): [K("C-z"), set_mark(False)],
+    }
+}, "Emacs-like keys")

install.sh

@@ -19,6 +19,7 @@ SYMLINKS=(
   config/mise/settings.toml
   config/solargraph/config.yml
   config/starship.toml
+  config/xkeysnail/config.py
   default-gems
   default-go-packages
   erlang