[sirrocco]

It's open source if you use timekit.io (their backend essentially .... ). So not really.

[blister]

Well... in fairness to this product, it's licensed with an MIT license, so in theory you can plug in whatever danged infrastructure you want.

Seems disingenuous to say "not really" to the open source question when it has such a liberal license. Fork it to use whatever you want.