Btc experiment ideas

Hey all,

What's a project I could experiment with as a btc maxi who's not studied any programming etc?

I know the basics about hardware (graduated in college a long long time ago so my knowledge would be very outdated)

I made a homemade mining rig quite a few years ago, I like these kind of projects so please give me similar ideas

I've considered setting up a node but it seems fairly simple and I'm looking for something that would take a long time to research and build, I'm open to any challenge

Is there anything like this apart from mining rigs, nodes and multisig wallets?

PS: Although I don't have any key skills I am a kinesthetic learner and I don't think I've ever messed up a project before, since this is how I learn I could really do with suggestions of projects that would help me develop a deeper understanding of how the btc network works

Thank you in advance