I’m looking for one that can:

• Run without any internet access (including during setup).
• Can be controlled over LAN via HomeAssistant.
• Mop.

5GHz wifi support and multiple floor capability would be a big bonus, but not a deal-breaker.

Basically, I’d like to get one, and see how I get on with it.
I’m happy to get something old/budget, to help me work out what I want in a “forever” vacuum.

Happy to buy second hand, and happy to flash/jtag/hack, so long as the procedures are reliable.