Direct Construction of Aperiodic Tilings with the Hat Monotile, by Ulrich Reitebuch.

libmceliece is a Classic McEliece microlibrary, by Daniel J. Bernstein and Tung Chou.

Rash is a shell language, library, and REPL for Racket.

Tech debt metaphor maximalism, by Avery Pennarun.

REFAL (Рефал) was created in Russia, then USSR, in the second half of the 1960s. It is a functional programming language in which computation is driven by pattern matching on textual and symbolic information. Manual. Refal Plus. Refal 5λ.

The Joy Of Duplexes, by Coda Hale. “In this post, we’ll talk about permutations, sponge functions, and duplexes–what they are, how they’re built, what makes them secure, and how they’re used.”

An archive of the GNU arch-verse, provided by Patrick Georgi in remembrance of Tom Lord.

I booted Linux 292,612 times and follow up, by Richard WM Jones.

Update: U+237C ⍼ ⍼, in search of the origins of a glyph.