Add tests

[yonas]

Even a few would be good.

[GabAlpha]

I agree, which ones were you thinking of? I would propose those for writing/reading tasks and projects. I think a temporary JSON file should be created and then deleted after the tests are finished

[yonas]

Those sound good.

[yonas]

Feel free to use my template repo https://github.com/yonasBSD/rust-ci-github-actions-workflow