I know ppl are springing for Mac Minis, but I have an Umbrel Home. It runs 24x7 so the agent is always on yet isolated from my main computer. I went to the App Store, clicked to install OpenClaw and let it walk me through setup. Connected it to my fav LLM (needed an API key). Connected it to Tailscale for a free private encrypted network. Dug up an old iPhone and got a Google voice line (free) so I can DM my bot on its own Signal app channel. Boom, I’m fully mobile and chatting with my agent. It can modify its own code, so I accomplished quite a bit by just talking with it over Signal. I’m not terribly tech savvy, but I’m slowly building its personal assistant capabilities, and I gotta say it’s pretty useful so far.