Gifts for technical people
Gifts for technical people are often another gadget. This catalog is code, drawn as bars. It fits an SRE, a sysadmin, or an engineer who has waited on a machine to boot.
The job, not the job title
Technical is a wide word. It covers the person who pages at 2 a.m., the person who still has a serial cable in a drawer, and the engineer who treats a boot log as a document. Gifts for engineers and gifts for IT people land in the same aisle of mugs with binary jokes. Those mugs assume the joke is enough. A listing is a better portrait, if they actually read listings.
This is a poor match for someone who wants a device. It is a good match for someone who can tell you what a file descriptor is. If they write product code all day and argue about frameworks, Gifts for developers is the page that starts from that desk. Stay here if the work is the machine, the network, or the system under the application.
Pieces that read as infrastructure
Linux start_kernel is the function a Linux machine passes through as it comes up. Linus Torvalds and others released the kernel under GPL-2.0 only. The notice stays on the page, which is the only honest way to put those bars on a mug. Anyone who has watched a boot hang will know why the picture is tall.
SQLite is for the person who has opened a file and discovered it was a database. D. Richard Hipp wrote it so a program would not die when a separate server was down. The authors gave the library to the public domain. Phones, browsers, and a lot of quiet infrastructure still link it.
CERN web server is for the person who thinks of the web as a service that has to stay up. Tim Berners-Lee's server, the line-mode browser, and libwww were placed in the public domain on 30 April 1993. The bars are the start of the routine that accepts a connection. Git belongs here too, if their operations world is versioned infrastructure rather than application features. Apollo 11 ignition belongs if they work on control systems. The ignition routine is a table of constants and a burn that does not return until the burn is the business.
Mug on the bench
A white tee is the same artwork. For this reader the mug is usually the better object, because the work is a bench, a rack, or a desk with a terminal. Redbubble prints it and ships to the EU and the US. The credit and the license notice stay on the page, which matters more for the kernel and for Git than it does for a public-domain library.
Pick one piece. An SRE does not need a set. They need the picture of the thing they have already spent a decade keeping alive.
You can tell this is the right catalog if they have corrected you about a tool, or if their stories are about boots, outages, and files that were not what the extension claimed. Gifts for techies that start from a gadget aisle are for the other stories, the ones about a phone. Those stories want a different shop.