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What is going on in Unix with errno's limited nature

The "personal computer" model scales better than the "terminal" model

Operating system kernels could return multiple values from system calls

I feel open source has turned into two worlds

Some bits on malloc(0) in C being allowed to return NULL

The X Window System didn't immediately have X terminals

My idea of how a modern mailing service should work (2011)

Our Grafana and Loki installs have quietly become 'legacy software' here

Linux kernel WireGuard can go 'fast' on decent hardware

Things are different between system and application monitoring

Python argparse has a limitation on argument groups that makes me sad

A thought on JavaScript "proof of work" anti-scraper systems

In POSIX, you can theoretically use inode zero

The lack of a good command line way to sort IPv6 addresses

Classical "Single user computers" were a flawed or at least limited idea

Intel versus AMD is currently an emotional decision for me

The length of file names in early Unix

Let's Encrypt Drops "Client Authentication" (mTLS) from Its TLS Certificates

Mandatory short duration TLS certificates are probably coming soon

The order of files in /etc/ssh/sshd_config.d/ matters

Unix files have (at least) two sizes

The appeal of serving your web pages with a single process

How I install personal versions of programs on Unix

My pessimism about changes to error handling in Go (but they'll happen)

If you get the chance, always run more extra network fiber cabling

I don't think error handling is a solved problem in language design

Some notes on Grafana Loki's new "structured metadata"

The web browser as an enabler of minority platforms

JSON has become today's machine-readable output format on Unix

The practical (Unix) problems with .cache and its friends

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