That's great! Maybe make more clear that this is only for science. You're mentioning it but only after min 7 or so. The meaning of "Not for main net" is only clear for developers.
Discussion
good thing that only developers are able to run the software😂
Great suggestion! I changed the warning to this:
Warning: for science only! Do not use this with real money. I only coded the "happy path" and there are lots of edge cases where you can lose funds, including if your internet connection is poor.