https://jochen-hoenicke.de/queue/
- Blockstream block explorer:
https://blockstream.info
- Electrum bitcoin wallet:
https://electrum.org
- Electrum Personal Server:
https://github.com/chris-belcher/electrum-personal-server
Music:
Firmament by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100480
Artist: http://incompetech.com/