People are at same time complaining about data slow but they seem to happily paying AWS 10x for less iops and bandwidth.

What does this have to do with consumer SATA SSDs?

This is not an area an open source will work. Particularly your main target is on cloud customers.

If you are confident with your work, you should not open your source because that’s the single leverage you have.

In the real world, unless are writing a very specialized system, intended to run only on Linux 6.0 and never, it just is not realistic and you will need some sort of abstraction layer to support at the very least additionally poll to be portable across all POSIX and POSIX like systems. Then if you want your thing to also run on Windows, IOCP rides in too...

I used 6.0 because 5.8-5.9 is roughly when io_uring became interesting to use for most use cases with zero copies, prepared buffers and other goodies, and 6.0 is roughly when people finally started being able to craft benchmarks where io_uring implementations beat epoll.

Some people would rather have an abstraction over io_uring and kqueue rather than choosing a single API that works everywhere they want to run, choosing to only run on the OS that provides the API they prefer, or writing their loop (and anything else) for all the APIs they want to support.

But I agree with you; I'd rather use the thing without excess abstraction, and the standard apis work well enough for most applications. Some things do make sense to do the work to increase performance though.

I do both: charge people to do it for them and do it for myself.

(your second sentence is a bit confusing)

Workers is a very expensive computing facility. Yeah, it is cheaper than AWS lambda but people don’t use that for everything.

it is quite obvious which one is easier: type bunch of ifdefs vs learn a new language.

BTW don’t fight C for portability, it is unlikely you will win.

"Blob servers" are essentially leverage cloud provider like AWS/Azure/GCP, not sure how this will help making "your data is entirely under your control".

By saying "under your control," I believe it means you are not locked in by cloud providers. Since it's easy to switch and back up between different blob storages, if one is down, your data remains accessible and manageable.

If you are targeting customers on AWS, don’t challenge EBS, because it is a losing game to begin with. There are 100 ways for AWS to optimize but none of them are available to you.

Sensational title, a reflection of “attention is all you need”.(pun intended)

Just build your damn image if you need it.

They don’t owe you anything.