utils: fix locate-pm2

packages/utils/lib/locate-pm2.ts

@@ -3,12 +3,15 @@ import path from 'path';
 
 const PATH = process.env.PATH?.split(':') || [];
 
+/* eslint-disable import/no-dynamic-require */
 // @ts-ignore
 const pm2: typeof import('pm2') | null = (() => {
     for (const dir of PATH) {
         try {
             const info = fs.readlinkSync(path.resolve(dir, 'pm2'));
             const p = path.resolve(dir, info);
+            if (p.startsWith('/nix')) return require(`${p.split('/bin')[0]}/lib/node_modules/pm2`);
+            // installed by yarn
             return require(`${p.split('.bin')[0]}pm2`); // eslint-disable-line import/no-dynamic-require
         } catch (e) { }
     }