fix nixpkgs to 25.11, update to new zig api

build.zig

@@ -17,11 +17,13 @@ pub fn build(b: *std.Build) void {
 
     var exe = b.addExecutable(.{
         .name = "zremap",
-        // In this case the main source file is merely a path, however, in more
+        // In this case the main source file is merely a path, however, in more),
         // complicated build scripts, this could be a generated file.
-        .root_source_file = .{ .path = "src/main.zig" },
-        .target = target,
-        .optimize = optimize,
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = optimize,
+        }),
     });
     exe.linkLibC();
     exe.linkSystemLibrary("evdev");
@@ -57,9 +59,11 @@ pub fn build(b: *std.Build) void {
     // Creates a step for unit testing. This only builds the test executable
     // but does not run it.
     const unit_tests = b.addTest(.{
-        .root_source_file = .{ .path = "src/main.zig" },
-        .target = target,
-        .optimize = optimize,
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = optimize,
+        }),
     });
 
     const run_unit_tests = b.addRunArtifact(unit_tests);

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1696419054,
-        "narHash": "sha256-EdR+dIKCfqL3voZUDYwcvgRDOektQB9KbhBVcE0/3Mo=",
+        "lastModified": 1758446476,
+        "narHash": "sha256-5rdAi7CTvM/kSs6fHe1bREIva5W3TbImsto+dxG4mBo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "7131f3c223a2d799568e4b278380cd9dac2b8579",
+        "rev": "a1f79a1770d05af18111fbbe2a3ab2c42c0f6cd0",
         "type": "github"
       },
       "original": {

flake.nix

@@ -1,34 +1,44 @@
 {
   description = "zremap nix flake";
 
-  outputs = {
-    self,
-    nixpkgs,
-  }: {
-    defaultPackage.x86_64-linux = with import nixpkgs {system = "x86_64-linux";};
-      stdenv.mkDerivation {
-        pname = "zremap";
-        version = "0.1";
-        src = self;
-        nativeBuildInputs = [zig.hook];
-        buildInputs = [libevdev pkg-config];
-        buildPhase = ''
-          NIX_CFLAGS_COMPILE="-isystem $(pkg-config --variable=includedir libevdev)/libevdev-1.0 $NIX_CFLAGS_COMPILE"
-        '';
-      };
+  outputs =
+    {
+      self,
+      nixpkgs,
+    }:
+    {
+      defaultPackage.x86_64-linux =
+        with import nixpkgs { system = "x86_64-linux"; };
+        stdenv.mkDerivation {
+          pname = "zremap";
+          version = "0.2";
+          src = self;
+          nativeBuildInputs = [ zig.hook ];
+          buildInputs = [
+            libevdev
+            pkg-config
+          ];
+          buildPhase = ''
+            NIX_CFLAGS_COMPILE=" -isystem $(pkg-config --variable=includedir libevdev)/libevdev-1.0 $NIX_CFLAGS_COMPILE"
+          '';
+        };
 
-    devShells.x86_64-linux.default = with import nixpkgs {system = "x86_64-linux";};
-      mkShell {
-        nativeBuildInputs = [zig lldb];
-        buildInputs = [
-          libevdev
-          pkg-config
-        ];
+      devShells.x86_64-linux.default =
+        with import nixpkgs { system = "x86_64-linux"; };
+        mkShell {
+          nativeBuildInputs = [
+            zig
+            lldb
+          ];
+          buildInputs = [
+            libevdev
+            pkg-config
+          ];
 
-        shellHook = ''
-          NIX_CFLAGS_COMPILE="-isystem $(pkg-config --variable=includedir libevdev)/libevdev-1.0 $NIX_CFLAGS_COMPILE"
-                 echo "happy hacking!"
-        '';
-      };
-  };
+          shellHook = ''
+            NIX_CFLAGS_COMPILE="-isystem $(pkg-config --variable=includedir libevdev)/libevdev-1.0 $NIX_CFLAGS_COMPILE"
+                   echo "happy hacking!"
+          '';
+        };
+    };
 }

makefile

@@ -0,0 +1,6 @@
+
+install:
+	cp ./zremap.service /etc/systemd/system
+	cp ./zremap-start /usr/local/bin
+	systemctl daemon-reload
+	systemctl enable zremap.service

src/main.zig

@@ -47,10 +47,10 @@ fn uinputWriteKey(uinput_dev: *c.libevdev_uinput, key: u16) !void {
     const pressKey = c.input_event{ .type = c.EV_KEY, .code = key, .value = 1, .time = undefined };
     const releaseKey = c.input_event{ .type = c.EV_KEY, .code = key, .value = 0, .time = undefined };
     const sync = c.input_event{ .type = c.EV_SYN, .code = c.SYN_REPORT, .value = 0, .time = undefined };
-    std.time.sleep(20000);
+    std.Thread.sleep(20 * std.time.ns_per_ms);
     try uinputWrite(uinput_dev, &pressKey);
     try uinputWrite(uinput_dev, &sync);
-    std.time.sleep(20000);
+    std.Thread.sleep(20 * std.time.ns_per_ms);
     try uinputWrite(uinput_dev, &releaseKey);
 }
 
@@ -63,7 +63,7 @@ pub fn main() !void {
 
     if (args.len != 2) {
         std.debug.print("error: expected one argument", .{});
-        std.os.exit(1);
+        std.posix.exit(1);
     }
     const dev_name = args[1];
     const dev = try inputDeviceOpenAndGrab(dev_name);

zremap-start

@@ -0,0 +1,5 @@
+#!/bin/sh
+sleep 1
+zremap  /dev/input/by-path/platform-i8042-serio-0-event-kbd
+
+

zremap.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=zremap keyboard remapping service
+After=system.slice sysinit.target basic.target systemd-journald.socket
+Before=shutdown.target multi-user.target
+StartLimitIntervalSec=0
+
+[Service]
+Type=simple
+Restart=no
+ExecStart=/usr/local/bin/zremap-start
+
+[Install]
+WantedBy=multi-user.target