Old Man Yells at Code
@joshmarinacci.bsky.social
author, single father, grumpy engineer, T1D.
Reposted by Old Man Yells at Code
Espressif hired a bunch of Rust devs years ago and they have been quietly doing great work supporting Rust on their chips ever since. Still haven’t seen any other chip companies get close.
developer.espressif.com/blog/2025/10...
developer.espressif.com/blog/2025/10...
esp-hal 1.0.0 release announcement
Announcing esp-hal 1.0, the first Rust SDK for embedded devices.
developer.espressif.com
October 30, 2025 at 12:02 PM
Espressif hired a bunch of Rust devs years ago and they have been quietly doing great work supporting Rust on their chips ever since. Still haven’t seen any other chip companies get close.
developer.espressif.com/blog/2025/10...
developer.espressif.com/blog/2025/10...
After much hard work esp-hal 1.0 is finally here. #rust #embedded
developer.espressif.com/blog/2025/10...
developer.espressif.com/blog/2025/10...
esp-hal 1.0.0 release announcement
Announcing esp-hal 1.0, the first Rust SDK for embedded devices.
developer.espressif.com
October 30, 2025 at 1:43 PM
After much hard work esp-hal 1.0 is finally here. #rust #embedded
developer.espressif.com/blog/2025/10...
developer.espressif.com/blog/2025/10...
If you play only one game from the J13k winners, it should be Witchcat. Amazing Zelda like puzzles and vibe. js13kgames.com/2025/games/w...
Witchcat
A game in the js13kGames 2025 competition. Play it now, for free!
js13kgames.com
October 10, 2025 at 9:22 PM
If you play only one game from the J13k winners, it should be Witchcat. Amazing Zelda like puzzles and vibe. js13kgames.com/2025/games/w...
I designed a new layout algorithm for my embedded rust gui toolkit. Here's a writeup on how it works. joshondesign.com/2025/10/07/e...
Embedded GUI Layout Algorithms
joshondesign.com
October 8, 2025 at 5:02 PM
I designed a new layout algorithm for my embedded rust gui toolkit. Here's a writeup on how it works. joshondesign.com/2025/10/07/e...
So far Liquid Glass has been better than I feared on iOS. The new transitions are nice. But it's so ugly on macOS.
October 6, 2025 at 1:42 PM
So far Liquid Glass has been better than I feared on iOS. The new transitions are nice. But it's so ugly on macOS.
www.subtext-lang.org/retrospectiv...
I’m a little late posting this, but it’s still fascinating. #programming #languages
I’m a little late posting this, but it’s still fascinating. #programming #languages
Subtext Retrospective
www.subtext-lang.org
October 3, 2025 at 3:33 PM
www.subtext-lang.org/retrospectiv...
I’m a little late posting this, but it’s still fascinating. #programming #languages
I’m a little late posting this, but it’s still fascinating. #programming #languages
I’ve been sick in bed for a week (likely covid stratus variant) and I’d like a rogue like to play on iOS. Any suggestions for something that doesn’t had f2p or micro-transaction game mechanics?
September 30, 2025 at 11:29 PM
I’ve been sick in bed for a week (likely covid stratus variant) and I’d like a rogue like to play on iOS. Any suggestions for something that doesn’t had f2p or micro-transaction game mechanics?
Progress on my new GUI toolkit for embedded Rust. It’s coming along nicely but I need some input.
joshondesign.com/2025/09/16/e...
joshondesign.com/2025/09/16/e...
Embedded Rust GUI Progress report
joshondesign.com
September 19, 2025 at 2:46 PM
Progress on my new GUI toolkit for embedded Rust. It’s coming along nicely but I need some input.
joshondesign.com/2025/09/16/e...
joshondesign.com/2025/09/16/e...
I installed iOS26. Liquid Glass is … fine? There’s some inconsistencies and lack of polish but it’s not as big of a change as the internet made me think. I haven’t tried the new macOS yet though.
September 17, 2025 at 9:14 PM
I installed iOS26. Liquid Glass is … fine? There’s some inconsistencies and lack of polish but it’s not as big of a change as the internet made me think. I haven’t tried the new macOS yet though.
Accessing the Keyboard and Screen on the LilyGo T-Deck with Rust
joshondesign.com
August 31, 2025 at 3:37 AM
I’ve been working with #embedded #rust on the LilyGo T-Deck (an Esp32 device) and put together some example code of using the different features of the board. joshondesign.com/2025/08/13/e...
Rust on the LilyGo T-Deck
joshondesign.com
August 27, 2025 at 9:51 PM
I’ve been working with #embedded #rust on the LilyGo T-Deck (an Esp32 device) and put together some example code of using the different features of the board. joshondesign.com/2025/08/13/e...
AI is a technology, not a product. Once some one finds a use for AI that makes money, the general purpose systems will be replaced by more efficient targeted ones, and we might not call it AI anymore. www.dbreunig.com/2025/08/01/d...
Does the Bitter Lesson Have Limits?
Recently, “the bitter lesson” is having a moment. Coined in an essay by Rich Sutton, the bitter lesson is that, “general methods that leverage computation are ultimately the most effective, and by a l...
www.dbreunig.com
August 2, 2025 at 6:20 PM
AI is a technology, not a product. Once some one finds a use for AI that makes money, the general purpose systems will be replaced by more efficient targeted ones, and we might not call it AI anymore. www.dbreunig.com/2025/08/01/d...
A shockingly good and concise explanation of Zod and other Typescript validators youtube.com/watch?v=6P-2...
Zod VS Valibot: JS/TS Validator Battle!
YouTube video by Jack Herrington
youtube.com
August 1, 2025 at 8:04 PM
A shockingly good and concise explanation of Zod and other Typescript validators youtube.com/watch?v=6P-2...
Reposted by Old Man Yells at Code
Hubble Space Telescope images of interstellar comet 3I/ATLAS are out! These were taken 5 hours ago. Plenty of cosmic rays peppering the images, but the comet's coma looks very nice and puffy. Best of luck to the researchers trying to write up papers for this... archive.stsci.edu/proposal_sea... 🔭
July 21, 2025 at 9:28 PM
Hubble Space Telescope images of interstellar comet 3I/ATLAS are out! These were taken 5 hours ago. Plenty of cosmic rays peppering the images, but the comet's coma looks very nice and puffy. Best of luck to the researchers trying to write up papers for this... archive.stsci.edu/proposal_sea... 🔭
Why are we using AI to write code? Code is to tell a computer to perform a task. AI is a computer. Why aren't we just having the AI do the task directly, and if the answer is because it's unreliable then why are we asking it to write code? ;)
July 9, 2025 at 5:48 PM
Why are we using AI to write code? Code is to tell a computer to perform a task. AI is a computer. Why aren't we just having the AI do the task directly, and if the answer is because it's unreliable then why are we asking it to write code? ;)
Science fiction is never really about the aliens. It’s about us. It’s not really about the future. It’s about the present. It’s not really about “them”. It’s really about us. SF is always a reflection on current society and our current problems.
July 8, 2025 at 8:55 PM
Science fiction is never really about the aliens. It’s about us. It’s not really about the future. It’s about the present. It’s not really about “them”. It’s really about us. SF is always a reflection on current society and our current problems.
Good software is honest about its limitations. It doesn’t make promises it can’t keep. It is conservative in what it outputs and never violates expectations.
LLMs are not good software.
LLMs are not good software.
July 8, 2025 at 2:27 AM
Good software is honest about its limitations. It doesn’t make promises it can’t keep. It is conservative in what it outputs and never violates expectations.
LLMs are not good software.
LLMs are not good software.
TIL about a restricted form of English called E-Prime. Seems like an esolang for your brain.
en.wikipedia.org/wiki/E-Prime
en.wikipedia.org/wiki/E-Prime
E-Prime - Wikipedia
en.wikipedia.org
July 7, 2025 at 7:02 PM
TIL about a restricted form of English called E-Prime. Seems like an esolang for your brain.
en.wikipedia.org/wiki/E-Prime
en.wikipedia.org/wiki/E-Prime
Why does my iPhone have an app for my glucose sensor, which is synced with Apple Health, yet Siri cannot answer the simple question “What is my current blood sugar level”?
July 7, 2025 at 6:52 PM
Why does my iPhone have an app for my glucose sensor, which is synced with Apple Health, yet Siri cannot answer the simple question “What is my current blood sugar level”?
LLMs are powerful but they are just technology, not magic. It’s going to take time for us to figure out what they are good for, and what they are bad at. Using them blindly is just reckless.
July 7, 2025 at 3:00 PM
LLMs are powerful but they are just technology, not magic. It’s going to take time for us to figure out what they are good for, and what they are bad at. Using them blindly is just reckless.
Someone asked me why I don’t use DoorDash. My reply: It’s low quality, error prone, and expensive. I think that pretty much covers it. Why pay more for worse?
July 7, 2025 at 1:29 AM
Someone asked me why I don’t use DoorDash. My reply: It’s low quality, error prone, and expensive. I think that pretty much covers it. Why pay more for worse?
Is it just me or have website auth timeouts gotten shorter? Ex: If I don’t interact with zeldamaps.com for a few hours it logs me out. This isn’t a bank, it’s ZeldaMaps!
Zelda Maps - Echoes of Wisdom Interactive Map
Interactive map of Hyrule from The Legend of Zelda: Echoes of Wisdom.
zeldamaps.com
July 4, 2025 at 7:00 PM
Is it just me or have website auth timeouts gotten shorter? Ex: If I don’t interact with zeldamaps.com for a few hours it logs me out. This isn’t a bank, it’s ZeldaMaps!
I posted to my family chat this morning: "Good morning. Happy 249th Birthday America. You don’t look a day over 238. 😉" My 14 yr old son's immediate response "I wonder what stupid thing trump will do today". I fear my Gen X cynicism may have rubbed off on my child.
July 4, 2025 at 5:56 PM
I posted to my family chat this morning: "Good morning. Happy 249th Birthday America. You don’t look a day over 238. 😉" My 14 yr old son's immediate response "I wonder what stupid thing trump will do today". I fear my Gen X cynicism may have rubbed off on my child.