been using the same setup for the past 2-3 months now. My company gave the employees old mac pro (intel) for free to use for whatever purpose they want to. I was using AWS for most of my personal projects which I have now migrated to this mac. I use the app 'Amphetamine' to not let the mac sleep, and rest of the setups are the same with Tailscale + termius etc
Fun fact: once you get ssh access to mac, you can control almost anything running on it. Like I added my mac air under termius, and I could mute/unmute any videos playing on chrome using osascript from my iphone :)