While I understand (and share) the caution around licenses, I don’t think this concern applies to Keep. With 99% of our codebase under the MIT license, it’s a far cry from just having "parts of the code with an open source license."
I recommend running Keep locally and comparing the Open Source version to the playground where full version is running. You might find it challenging to spot the differences.
I also reccomend comparing Keep Open Source to BigPanda and Moogsoft. It may be surprising how much of it Keep OSS, real MIT-licensed Keep has.
1% of cyanide compared to your body weight is still lethal.
P.S. I played a bit last night and I will for sure give it a try (I'm an idealist but still pragmatic and I hope people at Keep are similar)
Almost every tech company has private code—typically stored in private repositories. When working on Keep, we faced a decision: should we place certain code in the EE folder under a different license or keep it in a private repo, only sharing it with a small group of enterprise customers who explicitly requested it?
We chose to put that code on GitHub.
Ironically, putting more code in the GitHub repo made it appear "less open source," even though we could have simply hidden it, making the repo look like "clean OSS" as multiple companies do. For example, those who put their products without Web UI to the open source, build UI privately and serve the "full" version in the cloud.
I wish you all good luck, the product looks good, I hope you monetize it and I hope no big corp forks it and makes some closed source alternative (because MIT license does allow exactly that).