Once upon a time, there was a bit of a fad for fingerprint authentication in laptops and desktop computers. It has long since faded, but [superdog] wanted just such a …read more (https://hackaday.com/2026/07/03/building-a-wireless-fingerprint-authorization-device/)

Warp Point: a Web Ring for Gaming Sites Built for 2026
https://hackaday.com/2026/07/04/warp-point-a-web-ring-for-gaming-sites-built-for-2026/

At one point in time web rings were one of the best ways to find content on the World Wide Web — involving not just a directory of participating sites, …read more (https://hackaday.com/2026/07/04/warp-point-a-web-ring-for-gaming-sites-built-for-2026/)

Five Solar Air Heating Methods Tested
https://hackaday.com/2026/07/04/five-solar-air-heating-methods-tested/

For as good as solar panels are at converting sunlight directly into usable electricity, especially for how cheap they’re becoming, they can still only gather around 20-30% of the energy …read more (https://hackaday.com/2026/07/04/five-solar-air-heating-methods-tested/)

Yesterday’s Technology, Re-engineered Today
https://hackaday.com/2026/07/04/yesterdays-technology-re-engineered-today/

Watching [sprite_tm]’s build of a handheld 486-based gaming computer, we got to thinking about retro computers and the eternal questions of how much of the computer needs to be actually …read more (https://hackaday.com/2026/07/04/yesterdays-technology-re-engineered-today/)

Time Never Moves Slowly With This Clock
https://hackaday.com/2026/07/04/time-never-moves-slowly-with-this-clock/

A clock is by its very nature a device for measuring time, and thus it moves forward at a constant rate. But how about in a theatrical setting, where time …read more (https://hackaday.com/2026/07/04/time-never-moves-slowly-with-this-clock/)

Disk Polishing Goes Open Source
https://hackaday.com/2026/07/04/disk-polishing-goes-open-source/

Optical media is great — it’s pretty high density, relatively durable, and decently long-lasting if well cared for. If not well cared for, well, it’s only relatively durable, and we’ve …read more (https://hackaday.com/2026/07/04/disk-polishing-goes-open-source/)

Using Flatpak to Run a 1996 Version of the GIMP on Modern Linux
https://hackaday.com/2026/07/04/using-flatpak-to-run-a-1996-version-of-the-gimp-on-modern-linux/

Although there’s probably no good reason to want to run image editing software from 1996 other than for nostalgia’s sake, if you ever wanted to run the GIMP version 0.54 …read more (https://hackaday.com/2026/07/04/using-flatpak-to-run-a-1996-version-of-the-gimp-on-modern-linux/)

The Persistent Display We Never Got
https://hackaday.com/2026/07/04/the-persistent-display-we-never-got/