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![](https://fry.gs/pictrs/image/c6832070-8625-4688-b9e5-5d519541e092.png)
Their tuta email already is post quantum so it’s not that they can’t do the security part. Idk honestly, it’s probably just the logistics of getting a lot more servers if they’re trying to make a secure cloud. I just know they posted they’ll be developing that in the future 2 years ago, now would be a great time for it to release as an alternative.
https://opensource.com/alternatives/trello
Maybe these?