Direct link: https://www.maker-works.com/operations-book
Amazon link: https://www.amazon.com/Intentional-Makerspace-Operations-Dal...
You will probably want an onboarding process with liability waiver. This is partly materials for parents to help them understand what their kids will be up to at your house. You're going to host other people in your place and there is liability that comes along with that.
You will need to figure out how to keep your computer club from devolving into a lan party (unless that's what you want) and focused on learning opportunities by providing guided learning opportunities. LLMs are really good for helping you develop these activities based on an idea, including digging down into the details. Some things that kids might be into: building adder circuits in Minecraft with redstone (requires a basis in binary math and logic gates, which you can teach on paper and in minecraft). Scratch programs to fulfill certain goals (build a gravity model and get a spaceship to orbit; make a clone of a simple platformer video game they like; etc).
After you have some ideas for projects/classes, you're going to want to write up a schedule so parents can help their kids get there. You should also provide volunteer opportunities so kids (and possibly their parents) can help out - maintain the website, fix the computers, etc. This not only helps lessen your workload, it also gives them a sense of community, that they're not just coming to hang out, they're responsible. Make sure to have community standards around cleaning up after yourself and enforce them.
So, maybe after having a couple of scheduled classes, put out a call for donation of old computer hardware, and maybe have the kids try to assemble some working systems from whatever you get. Good luck!
There's https://devhack.net/ in Seattle's U-District as well as Black Lodge Research https://www.blacklodgeresearch.org/ over in Redmond
They're both a far cry from what you're describing. But a lot of it is just putting the work in to build and foster a community around such a thing. Maintaining positive vibes among all members and making it a "third space" for those that want one
I like the Tuesday Rule.
As one of the founders of the hackerspace you've visited out in seattle & a fellow recurser that you might've heard about the space from, I can drop to you some of my notes & learnings from two years in of devhack.
the biggest piece of advice by far that I pulled from a bunch of european-style hackerspaces (& HacDC, my formative hackspace) has been: Just do it. Find a physical space, start doing meetups, promote it a bit and cool folks will find you.
https://fahrplan.events.ccc.de/congress/2007/Fahrplan/attach...
We at devhack took a very word-of-mouth based approach to promotion and that has prevented what a lot of comments here are trying to mitigate in terms of attracting the wrong crowd too quickly -- although I think there's lots of value in creating a space which supports eccentric folks / ppl with diverse backgrounds.
Founding a hackspace is a very learn-as-you-go experience, has been very fulfilling and has had plenty of hiccups that we've had to react to as they come. The most important part is to have fun and create a fun space for you and your friends.
Also, put a roller rink in your space. very important and wish we had that