@pitaj Sure, why not:)
In the path /to_your_nodebb_path/node_modules/nodebb-theme-persona/library.js (or whatever file and path you want to add), after the first line which is 'use strict';, add these lines below the first line:
Then comment out line starting with var meta by adding two //://var meta = require.main.require('./src/meta');
Then you can restart by either of these ways:/nodebb_path/nodebb restart service nodebb restart systemctl restart nodebb
Regarding custom plugin, I'll consider it soon.