I second the miniPC suggestions, I have a Dell Optiplex 9020M (bought used for about €70 some two years ago), put an SSD in it plus 8 GB RAM, and it handles anything I throw at it (minus real-time video transcoding).
I use it in a headless way, so YMMV with the video displaying part, but I doubt a Pi would be stronger in this regard.
In any case, I think it’s worth looking around before committing to a Pi, these micro pcs are quite convenient to carry/store/service, and they are self-contained unlike a Pi.
https://www.servethehome.com/introducing-project-tinyminimicro-home-lab-revolution/
Here’s the article that started me down this path ^
Edit: I see you’re more into electronics, and I don’t know much about GPIO on these machines, so the laptop may be the simplest solution then - in any case, it’s nice to have options
I’m sorry, but cum.
You can swear on the internet. And this isn’t swearing even, it’s just related to sex, you know, something natural