I'm happy to inform you that I published the full source code of Signup Core library including the key signer and client side runtime.
https://github.com/signupcash/Signup-Core
Will announce in read.cash within this week as soon as things got a bit more stable. Stay safe!! Cheers 😀🍻
Oh that's great to know. I will add other examples soon including SLP tips, cash accounts etc. Feel free to open an issue in github if you had any requests/feedback