Andrei

Use `Vec::drain` method which allows to move elements out of the vector. Then wrapping `thread` into `Option` is not needed.

Use idiomatic way to drop threads from the vector

1

- [X] I have checked the latest `main` branch to see if this has already been fixed - [X] I have searched existing issues and pull requests for duplicates URL...

**Describe the bug** LNURL static QR code does not conform [LUD-01 fallback scheme](https://github.com/lnurl/luds/blob/luds/01.md#fallback-scheme). The `LIGHTNING` parameter is uppercased, but has to be lowercased. **To Reproduce** Steps to reproduce the behavior:...

Use normal user to run bitcoin and cln

2

It solves the problem that files created in volumes have root user and make it hard to remove on Linux machines.