feat: enhance AWG detection and configuration handling

src/server/utils/config.ts

@@ -19,6 +19,15 @@ export const WG_ENV = {
   PORT: assertEnv('PORT'),
   /** If IPv6 should be disabled */
   DISABLE_IPV6: process.env.DISABLE_IPV6 === 'true',
+  /** Override automatic detection */
+  AWG:
+    process.env.AWG === 'true'
+      ? true
+      : process.env.AWG === 'false'
+        ? false
+        : undefined,
+  /** TODO: delete on next major version */
+  EXPERIMENTAL_AWG: process.env.EXPERIMENTAL_AWG === 'true',
 };
 
 export const WG_INITIAL_ENV = {

src/server/utils/wgHelper.ts

@@ -9,9 +9,17 @@ type Options = {
   enableIpv6?: boolean;
 };
 
-const wgExecutable = await exec('modinfo amneziawg')
-  .then(() => 'awg' as const)
-  .catch(() => 'wg' as const);
+let wgExecutable: 'awg' | 'wg' = 'wg';
+
+if (WG_ENV.EXPERIMENTAL_AWG) {
+  if (WG_ENV.AWG !== undefined) {
+    wgExecutable = WG_ENV.AWG ? 'awg' : 'wg';
+  } else {
+    wgExecutable = await exec('modinfo amneziawg')
+      .then(() => 'awg' as const)
+      .catch(() => 'wg' as const);
+  }
+}
 
 export const wg = {
   generateServerPeer: (