Daily issue / 2026-05-24
Useful things that surfaced in Hacker News discussions on 2026-05-24. Open the context to see why each one caught our attention—or jump straight to the original thread.
What we found
Terminal coding agent tuned for DeepSeek cache efficiency.
Source discussion: DeepSeek reasonix, DeepSeek native coding agent with high caching and low cost
Editorial paraphrase
HN comments said DeepSeek V4 Pro was a preferred cheap model and paired DeepSeek with opencode and Claude Code.
Read the original threadA Firefox Web Serial flow for building Adafruit projects.
Source discussion: Build Adafruit projects right from Firefox
Editorial paraphrase
One commenter said “Great to see Firefox getting on board,” and another called it an “Amazing feature for beginners.”
Read the original threadA classic data-graphics handbook on clearer charts.
Source discussion: I spent 50 hours drawing a line graph
Editorial paraphrase
The thread included “You should add in Calvin Schmid’s Handbook of Graphic Presentation into your list.”
Read the original threadA free Dyalog APL book for learning array programming.
Source discussion: Mastering Dyalog APL
Editorial paraphrase
One comment said it gave “dopamine hits” and was a nice way to ramp up, while others linked Dyalog editor resources and BQN docs.
Read the original threadA free archive of nostalgic beginner-friendly computer books.
Source discussion: Usborne 1980s Computer Books
Editorial paraphrase
Commenters praised the “clear instruction and evocative old-school art” and said the BASIC books started their coding journey.
Read the original threadA friendly Ruby event for maintaining real open-source projects.
Source discussion: Ruby for Good
Editorial paraphrase
The founder said it is “absolutely not a hackathon,” and a volunteer said they had “a great experience.”
Read the original threadAn original 86-DOS disk image, the MS-DOS precursor.
Source discussion: Microsoft open-sources "the earliest DOS source code discovered to date"
Editorial paraphrase
One comment noted the 0.1-C binaries are earlier than the source release and can be downloaded and used in an emulator.
Read the original threadA modern APL-style array language with a quick-start guide.
Source discussion: Mastering Dyalog APL
Editorial paraphrase
A commenter linked the BQN repo and quick guide alongside other APL editor resources.
Read the original thread