Switching to gokrazy[0] was the best thing I did for my Raspberry Pi uptimes. I think a lot of that is because it defaults to using read-only partitions so the common issue of SD cards falling over when you run apt upgrade no longer happens.
But I also think that gokrazy's simplicity and design helps it be just a solid, reliable foundation to build on top of.
I used dietpi [1] for similar reasons: a slim version of Debian, and with the defaults set to push all the logging into ram to minimize writes. Dietpi has opinionated defaults, for sure, but it's easy to choose something else (e.g. Dropbear is the default ssh server, but bumping to OpenSSH is a matter of changing a setting in the handy config tool).
I've been running an RPi3 on dietpi on an SD card as my secondary PiHole instance on it for at least a year with no issues.
Looks interesting! but not clear to me who is behind the project? do you know if it is a commercial sponsorship, Golang team / Google, or pure community based open source ?
But I also think that gokrazy's simplicity and design helps it be just a solid, reliable foundation to build on top of.
[0]: https://gokrazy.org/