TuningYourCode

I support this claim. Also the title already includes everything relevant compared to „we made Postgres 20x faster“.

On the other side if dev(ops) does not know that local storage is faster than network/cluster filesystems…

There is at least https://jmap.io/spec-calendars.html just adoption is a bit low for now but I hope it will gain more traction the next years.

Hetzner‘s storage share product line offers a managed Nextcloud instance. I‘m using them as I didn‘t want to care about updating it myself.

The only downside is you can‘t use apps/plugins which require additional local tools (e.g. ocrmypdf) but others can be used just fine.

Calling remotely hosted services works (e.g. if you have elasticsearch on an vps and setup the Nextcloud fulltext search app accordingly)

We use shamir to be able to activate a special internal service. We at least need to person to activate it. Also Hashicorp Vault (and forks) are using it to seal/unseal the cluster.

Well just look into atlassian issue tracker. It‘s the same for them and sometimes bugs are old enough to drink alcohol.

The sad part is that their cloud services also often don‘t support basic features which their self hosted software offer…

You mean like https://github.com/s3fs-fuse/s3fs-fuse ? It‘s so old that even debian has precompiled packages ;)