Adding a bot to a room without browser

[Yosshi999]

My question is almost same as #2916 , but I want to know how to make the bot which can enter and walk in a HUBS room without browsers.
There are some solutions with chromium / puppeteer like below, but their cost gets expensive when we summon many bots.
When I watch the network packets, it seems speaking websocket is enough for automation.
Do anyone know how to do that? Or do anyone know how HUBS synchronize clients' movement?

Examples for automation by accessing DOM:

• https://github.com/MozillaReality/botomatic/blob/master/index.js
• https://github.com/zach-capalbo/hubs-client-bot/tree/master

[Yosshi999]

It seems I must understand networked-aframe