Bitcoin Core – How do I set up my own custom seal?

Configuration: Windows system on local WiFi network. For classroom purposes, I would like to have a custom Signet network for my students to use Bitcoin Core and Send/Receive.

This is the bitcoin conf file I already created:

signet=1
signetchallenge=512100146aa4936a2dc8d8c26c3429a0c78017f974268d2f51ae

(signet)
rpcport=38332
rpcuser=tester
rpcpassword=tester

I used the Signet wiki page to get started with ChatGPT (since I use Windows and the wiki page shows it on Linux).

I believe the other nodes must also use the same conf file, but they cannot see each other on my WiFi network. This is my first time trying Signet, so there’s a good chance I’ll make some stupid error here.

Setting up an issuer to mine blocks is another difficulty. I hope you can get some insight into that too.

thank you!