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Aug 6, 2014 at 22:00
Learnt today that Emacs supports `the'. It's a no-op, so presumably just a Common Lisp compatibility feature.

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Feb 7, 2026 at 20:55
1
Today I learnt about "bypass charging", a phone feature where it can run directly off the mains without using the battery at all. No battery charging, less heat, less battery wear. Nifty.
Here are all the phones that support bypass charging, and why you should use it
Here are all the phones that support bypass charging, and why you should use it
Few phones on the market can draw power directly from the wall, bypassing the battery while charging. But are the benefits tangible enough?
Dec 31, 2025 at 08:29
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Igalia's post on self-hosting CI runners is a masterclass in build engineering. It shows dealing with weird API constraints, but still finding good designs. I also learnt that some CI systems use OCR on Apple's installers to automate!
Web engine CI on a shoestring budget
Web engine CI on a shoestring budget
How we built a CI runner orchestration system that halved Servo’s build times for only 300 EUR a month.
Aug 18, 2025 at 22:44
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Today I learnt that Racket *intentionally* doesn't have a traditional REPL workflow. The authors were concerned about students not understanding the state between the current session and the code on disk. (Arguably Jupyter has some of these features now.)
the DrScheme repl isn't the one in Emacs
_posted by matthias_ Dear old Lisper, You have found drscheme and it is almost like your old Lisp machine. It is easy to program in it, it has things that nobody else has, and we all love parentheses. But after some initial enthusiasm you are wondering ...