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NVIDIA's DLSS Frame Generation refuses RTX 30-series cards.

Downsampling is an enterprise feature in VictoriaMetrics.

A personal mail server can receive on its own, but sending needs a relay with a reputation.

Two VyOS VMs with identical MACs, a bridge with no ports, host-side tap moves, a seeded DHCP lease, and a dead-man switch.

I built a PRU clock that held nanoseconds on the bench, then rang under load.

Attack Shark, Epomaker and Akko sell hundreds of keyboards built on the same ROYUAN hardware, configurable only through Windows software.

Every seven hours the router's load average hit 1.0 for forty five minutes.

Working with an AI on a side project, it felt more authentic and more obviously not human at the same time.

I prepped a music set for a 1500-watt DIY rig and synthesized a missing sub-bass octave into tracks rolled off below 40 Hz.

The storage interface on a production cluster was pulling 4 to 12x more than the public interface where client requests arrive.

An IMAP THREAD command was panicking inside Dovecot's array code.

I wanted a real Ceph endpoint (S3, CephFS, RBD) to test app code against, without a k8s cluster or a single byte hitting my SSD.

I built a GPS-disciplined NTP server on a $20 ESP32 with single-nanosecond internal timing.

Finding an IMAP server's real capacity means driving load from many hosts at once.

A GPS-disciplined NTP server stopped being disciplined, and every monitor stayed green.

I built a Go daemon that drives a music visualizer on a Pi.

One USB serial port, two programs that both need exclusive access. ts2phc wants RMC-only for PTP clock discipline; gpsd wants everything else.

The standard Linux PPS driver timestamps the GPS pulse in an interrupt handler and pays ~20 µs of jitter for it.

Upstream plugin started pulling 320 kbps instead of lossless FLAC, and swapping client IDs did nothing.

A friend's gaming VM hard-reset its Proxmox host the instant a game launched, with nothing in the logs.

An RP2040 furnace controller would freeze at random, always when the WiFi dropped.

Reading a u-blox GPS over I2C frees the UART, but the I2C interface has no concept of idle.

A host scanner that opened a raw socket and a goroutine per host fell over on anything bigger than a /24.

A cheap Ecowitt station reports UV and solar radiation that read high and jump around.

A blockchain hands you an append-only log of transfers in three shapes, behind a rate-limited RPC that rewrites its own recent history.

Porting a working chain indexer from Python to Rust, where the easy parts get harder and the vague parts get found.