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feat: add xremap command key #767

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Merged
shunkakinoki merged 18 commits into from
Feb 9, 2026
Merged

feat: add xremap command key #767

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0575891
feat: add xremap command key
shunkakinoki Feb 9, 2026
d025543
new branch
shunkakinoki Feb 9, 2026
3ca6586
Merge remote-tracking branch 'origin/main' into chore/xremap-command-key
shunkakinoki Feb 9, 2026
066a55a
chore: remove nerdfonts from font configuration
shunkakinoki Feb 9, 2026
da5d6cf
new branch
shunkakinoki Feb 9, 2026
ea4bcb5
new branch
shunkakinoki Feb 9, 2026
bebc4ca
new branch
shunkakinoki Feb 9, 2026
2f39ca7
chore: update xremap service configuration for key bindings
shunkakinoki Feb 9, 2026
8ebb335
fix: switch xremap to system service mode for device permissions
shunkakinoki Feb 9, 2026
7fbb23f
chore: add comments to clarify xremap device exclusion in keyd config…
shunkakinoki Feb 9, 2026
fecfcbc
fix: switch xremap back to user mode with udev rules for keyd devices
shunkakinoki Feb 9, 2026
c08b0e1
fix: switch xremap to wlroots backend to avoid Hyprland startup race
shunkakinoki Feb 9, 2026
3b232e4
fix: delay xremap until graphical session is ready
shunkakinoki Feb 9, 2026
9aa681f
fix: restart xremap after hyprland env import
shunkakinoki Feb 9, 2026
cec3950
new branch
shunkakinoki Feb 9, 2026
671c3eb
Merge remote-tracking branch 'refs/remotes/origin/chore/xremap-comman…
shunkakinoki Feb 9, 2026
9444237
fix: correct group name from 'inputs' to 'input' in NixOS configuration
shunkakinoki Feb 9, 2026
7fd6611
fix: update xremap configuration and improve service settings
shunkakinoki Feb 9, 2026
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91 changes: 90 additions & 1 deletion flake.lock
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4 changes: 4 additions & 0 deletions flake.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,10 @@
nixos-hardware = {
url = "github:NixOS/nixos-hardware/master";
};
xremap = {
url = "github:xremap/nix-flake";
inputs.nixpkgs.follows = "nixpkgs";
};
};

outputs =
Expand Down
106 changes: 105 additions & 1 deletion named-hosts/matic/default.nix
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Expand Up @@ -36,6 +36,9 @@ inputs.nixpkgs.lib.nixosSystem {
# Keyd configuration
../../config/keyd

# Xremap module
inputs.xremap.nixosModules.default

# Base system configuration
(
{ config, lib, ... }:
Expand Down Expand Up @@ -63,6 +66,7 @@ inputs.nixpkgs.lib.nixosSystem {
extraGroups = [
"wheel"
"networkmanager"
"input"
"video"
];
Comment on lines 66 to 71

Copilot AI Feb 9, 2026

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Adding the user to the input group grants broad read access to /dev/input/event* on many systems (i.e., keylogging capability). If xremap only needs access to /dev/uinput, consider avoiding input group membership and instead granting access just to the uinput node via a dedicated group or uaccess on that device only, to keep privileges minimal.

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home = "/home/${username}";
Expand All @@ -72,6 +76,107 @@ inputs.nixpkgs.lib.nixosSystem {

security.sudo.wheelNeedsPassword = false;

# Input remapping (xremap)
hardware.uinput.enable = true;
boot.kernelModules = [ "uinput" ];
services.udev.extraRules = ''
KERNEL=="uinput", GROUP="input", TAG+="uaccess", MODE:="0660", OPTIONS+="static_node=uinput"

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The udev rule sets GROUP="input" for the uinput device, which ties the setup to the broad input group and duplicates the uaccess tagging approach. Consider switching this rule to a dedicated group (e.g., uinput) or relying on TAG+="uaccess" alone for the uinput node, so you don’t need to grant the user full input group privileges.

Suggested change
KERNEL=="uinput", GROUP="input", TAG+="uaccess", MODE:="0660", OPTIONS+="static_node=uinput"
KERNEL=="uinput", TAG+="uaccess", MODE:="0660", OPTIONS+="static_node=uinput"

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'';
services.xremap =
let
hyperPrefix = "C-A-S-Super-";
ctrlPrefix = "C-";
letters = [
"a"
"b"
"c"
"d"
"e"
"f"
"g"
"h"
"i"
"j"
"k"
"l"
"m"
"n"
"o"
"p"
"q"
"r"
"s"
"t"
"u"
"v"
"w"
"x"
"y"
"z"
];
numbers = [
"0"
"1"
"2"
"6"
"7"
"8"
"9"
];
Comment on lines +121 to +129

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The numbers list skips "3", "4", and "5", so Hyper+3/4/5 won’t be remapped (and the omission is easy to miss because other sets are complete). If this is meant to cover all number keys, include the missing digits or generate the list programmatically to avoid accidental gaps.

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symbols = [
"semicolon"
"dot"
"comma"
"slash"
"grave"
"backslash"
"leftbrace"
"rightbrace"
"apostrophe"
];
navigation = [
"tab"
"backspace"
"left"
"right"
"up"
"down"
];
remapKeys = letters ++ numbers ++ symbols ++ navigation;
mkRemap = keys: builtins.listToAttrs (map (key: {
name = "${hyperPrefix}${key}";
value = "${ctrlPrefix}${key}";
}) keys);
globalRemap = mkRemap remapKeys;
ghosttyRemap = globalRemap // {
"${hyperPrefix}c" = "C-Shift-c";
"${hyperPrefix}v" = "C-Shift-v";
"${hyperPrefix}z" = "C-z";
};
in
{
enable = true;
serviceMode = "user";
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userName = username;
withWlroots = true;
watch = true;
deviceNames = [ "keyd virtual keyboard" ];
config = {
keymap = [
{
name = "Framework Command (Ghostty)";
application.only = [ "com.mitchellh.ghostty" ];
remap = ghosttyRemap;
}
{
name = "Framework Command (Global)";
application.not = [ "com.mitchellh.ghostty" ];
remap = globalRemap;
}
];
};
};

# AMD graphics with hardware acceleration
hardware.graphics.enable = true;
hardware.graphics.extraPackages = with pkgs; [
Expand Down Expand Up @@ -219,7 +324,6 @@ inputs.nixpkgs.lib.nixosSystem {
ipaexfont
ipafont
joypixels
nerdfonts
nerd-fonts.jetbrains-mono
noto-fonts-cjk-sans
noto-fonts-cjk-serif
Expand Down
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