Daily issue / 2026-09-25
Useful things that surfaced in Hacker News discussions on 2026-09-25. Open the context to see why each one caught our attention—or jump straight to the original thread.
What we found
A Rust SIMD library with safe APIs; users report shipping byte search and FFTs on stable Rust.
Source discussion: Fearless SIMD v1.0
“Have been really happy with Fearless simd, I used it to write”
Dr_Emann · recommendation · first hand use
Direct HN comment
“This is quite amazing. Fearless SIMD is what finally allowed my FFT crate, PhastFT, to run on stable Rust”
O3marchnative · recommendation · first hand use
Direct HN comment
An ESP32 operating environment with Python and Lua runtimes, used to build a handheld PDA.
Source discussion: The newest ESP32 can run Linux and it's getting close to a Raspberry Pi
“a project I've been a big fan of is SolarOS, which provides Python and Lua runtimes for user application development”
100percentjake · recommendation · first hand use
Direct HN comment
A Linux desktop environment whose mixed tiling and floating workflow won over a daily user.
Source discussion: Ideas on modernizing the open-source desktop
“COSMIC's mixed tiling+floating workflow is amazing and my new daily driver.”
c7b · recommendation · first hand use
Direct HN comment
A modern F-Droid client suggested as an alternative in the Android app-store discussion.
Source discussion: F-Droid 2.0
“Check out Neostore too. You'll love it.”
TutleCpt · recommendation
Direct HN comment
An Android public-transit planner singled out as excellent among apps available via F-Droid.
Source discussion: F-Droid 2.0
“Öffi, an excellent public transit app”
tgsovlerkhgsel · recommendation
Direct HN comment
A web map-making tool recommended for virtual wandering by a GeoGuessr community member.
Source discussion: My weird new hobby: Wandering around Tokyo on Google Maps
“I recommend map-making-app for wandering around”
jvvw · recommendation
Direct HN comment
A Quest VR world-exploration app a user enjoys for relaxed virtual travel.
Source discussion: My weird new hobby: Wandering around Tokyo on Google Maps
“I use an app called Wander to do this in my Oculus Quest. With some lo-fi music it really helps with anxiety. It really is fun”
krapp · recommendation · first hand use
Direct HN comment
Robert Weinberg's cancer-biology textbook, recommended by a pathologist as an accessible starting point.
Source discussion: Why is the liver so weirdly regenerative?
“If you really want to learn about this stuff, Robert Weinberg's The Biology of Cancer is where to start.”
0xWTF · recommendation · first hand use
Direct HN comment
A talk on rethinking desktop interfaces, praised for its presenter and window-overview demo.
Source discussion: Ideas on modernizing the open-source desktop
“Scott is a very good presenter, and he clearly thinks about this stuff a lot. I really liked the demo for moving windows to the sides of the screen”
ardeguire · recommendation · evaluated
Direct HN comment
A compact electric SUV whose recent owner says it has been great so far.
Source discussion: Toyota is taking the Corolla electric
“I bought a BYD Atto 2 this month and it's great.”
XorNot · recommendation · first hand use
Direct HN comment
An electric compact SUV praised by its owner for physical controls and conventional door handles.
Source discussion: Toyota is taking the Corolla electric
“So, I bought one. It's good. There are physical controls for the temperature and volume, and the door handles aren't stupid.”
sgarrity · recommendation · first hand use
Direct HN comment