* lnbits/settings: get LNBITS_COMMIT from envvar if available
There is no other way of setting the git commit at runtime, for build systems like Nix that allow you to hermetically define envvars derived from the source that will be available reproducibly at runtime
* nix: update potree2nix and nixosModule
This is a general refactor that gets everything building and passing the vmTest again
* Update nix/modules/lnbits-service.nix
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Co-authored-by: Pavol Rusnak <pavol@rusnak.io>
This commit is not exhaustive, and it is a trend in this codebase to not
use StaticFiles() and instead use relative paths. This means the code
cannot run anywhere other than the source code directory, as it will not
find the files it is looking for
This adds a wrapper around uvicorn using Python. This is so the
entrypoint lnbits.server can be called on the command line, and passed
arguments like port and host. This makes lnbits feel more like a real
CLI application, and lends well to running as a service in systemd
