iiinova — where your digital self keeps evolving

What are you using freelists for in Elixir?

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Yeah, this is why pushing it out to Rust which can do that is better.

The tricky problem is making it performant as it gets huge, you'll end up enumerating lists consuming a bunch of cpu, at least that's what we hit.

Aaron Gunderson @agundy.com · 08/05/2026

Pros and cons to NIFS for sure. The core is just a map pointing to binaries or other lists, which compresses what you have to store. You can use Elixir maps, binaries and lists etc. Just tested and Claude code can generates a plausible implementation but no promises. 😀

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I’m currently looking for my next role and I’d love for it to be Elixir. Stay tuned for more posts 👀

Aaron Gunderson @agundy.com · 08/05/2026

RoaringBitmaps are a fun data structure letting you work with large sets efficiently. I wrote up how to use them in Elixir with a library we open sourced at Tern. agundy.com/blog/using-r... #elixirlang

agundy.com

Using Roaring Bitmaps in Elixir | agundy

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ryan cooper @ryanlcooper.com · 24/04/2026

one reason I'm increasingly intolerant of "data centers gave me lyme disease" type fear mongering is it spreads www.propublica.org/article/mich...

propublica.org

Unfounded Health Concerns Are Powering a Solar Backlash

Across the U.S., critics are pressuring public officials to stop or stall new solar projects, often citing unfounded health concerns.

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Aaron Gunderson @agundy.com · 23/04/2026

New bike day this past weekend for my brother! First full suspension for him and we had fun breaking it in with friends.

Man with a yellow cycling helmet vana White posted showing off a full suspension mountain bike leaning against a chains link fence

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Zach Daniel @zachdaniel.dev · 10/12/2025

@ash-hq.org core team member and renaissance man James Harton just launched Beam Bots, a framework for building resilient robotics applications in Elixir. Epic 🤯 harton.nz/blog/announc...

harton.nz

Announcing Beam Bots: Resilient Robotics on the BEAM

Introducing Beam Bots, a framework for building fault-tolerant robotics applications in Elixir using familiar OTP patterns.

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Ben Wheat @beardywheat.bsky.social · 13/11/2025

Generating more code is never and has never been signs of success in engineering. Generating the least amount of clear and maintainable code is always the answer. I know this context is a little different but I’m triggered.

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Jacob DeFlitch @wxdeflitch.bsky.social · 01/11/2025

October moments in the Pacific Northwest.

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Aaron Gunderson @agundy.com · 30/08/2025

Beautiful day for treats outside. Got donuts and pastry’s this morning and then read in the park.

A box of pastry’s on a sunny picnic table. 4 treats are inside: a gochujang sticky bun, sweet+ savory garlic roll, a 5 spice cinnamon sugar donut and a brown butter donut.

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Aaron Gunderson @agundy.com · 29/08/2025

It does a great job absolving individual responsibility if you don’t dig deeper. These huge corporations obviously just pollute for giggles, and not because we pay them to.

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Aaron Gunderson @agundy.com · 29/08/2025

Insurance costs ($) is an information signal to discourage doing extremely costly behavior with long tail risks. Something I’ve been struggling with. To make everyone whole regardless of the risk they took on is not going to end well. Too many millions in flood and fire zones

with.to

Aaron Gunderson @agundy.com · 15/08/2025

They don’t want more people to bike, they want the park to be their personal backyard and ignore the fact it’s a critical transit corridor between Alweife, Mass Ave and Davis Sq www.cambridgeday.com/2025/08/13/j...

Screenshot of comments from Poor BonoPublicoay, August 14, 2025 at 2:21 am
“This is the best news Bono has seen in Cambridge in years, or possibly decades!
Bravo for pushing back against this tyrannical, unelected administration and the tiny cabal of protected city employees who take pride in not listening to anybody but bicyclists, whether they live here or not. At the very first community meeting on the "redesign," that many argued was not even necessary, then CDD project manager Cara Seiderman declared that the paved path would be "widened to 14 feet where feasible" and there would be no discussion allowed at all of this key element of the project. Now retired, Seiderman was a nationally recognized promoter of bicycle infrastructure. Her replacement doesn't live in Cambridge but he told me he "rides his bike through the area." Widening the paved surface endangers trees, does damage to an award-winning refuge from city noise and traffic, and will make it even easier for bicyclists - who are already allowed to go way too fast - to go even faster. Had enough??”

Aaron Gunderson @agundy.com · 15/08/2025

Jealous. Gotta find those gravel routes. Did a loop out near Georgetown that was nice but have to drive to the start.

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Joshua Benton @joshuabenton.com · 07/08/2025

GPT-5 is so amazing it can make 52.8 higher than 69.1 on a bar chart It can even make 69.1 and 30.8 THE SAME SIZE

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Scott Hanselman 🌮 @scott.hanselman.com · 17/07/2025

Hey friends! I did a TEDx talk and it's now up on the TED Conferences YouTube. It's possibly the best and most important talk I've ever done. I would ask that you watch it, and please SHARE it broadly and widely. Thank you! youtu.be/dVG8W-0p6vg #AI #Tech #TED

youtu.be

Tech Promised Everything. Did it deliver? | Scott Hanselman | TEDxPortland

YouTube video by TEDx Talks

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Jason Koebler @jasonkoebler.bsky.social · 17/07/2025

The gleeful doxing of someone cheating in public is bad even if they are a CEO and even if they are a Coldplay fan. It's bad because this kind of thing is happening to random people on TikTok for such crimes as "sitting silently on a plane" or "being attractive" www.404media.co/the-astronom...

404media.co

The Astronomer CEO's Coldplay Concert Fiasco Is Emblematic of Our Social Media Surveillance Dystopia

Facial recognition and crowdsourced social media investigations are constantly being used not just on cringe CEOs, but on random people who are simply existing in public.

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Aaron Gunderson @agundy.com · 28/06/2025

Man under-biking is a whole thing. Looks like a great time, mountain bikes may make it easier but where’s the joy? People are haters.

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Zack @zack.fyi · 26/06/2025

I really like this article's perspective on software development as theory building; it succinctly conveys a lot of what I've felt is lost when too much of your code is generated by AI: cekrem.github.io/posts/progra...

cekrem.github.io

Programming as Theory Building: Why Senior Developers Are More Valuable Than Ever

Peter Naur's 1985 theory of programming explains why experience matters more in the age of AI-generated code

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Aaron Gunderson @agundy.com · 22/06/2025

The problem is with modern print on demand services the bar to a physical book is lower than ever. Gonna start being hard to trust a physical book isn’t AI bs either.

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Michael Koper @michaelkoper.com · 30/05/2025

Five years ago, coding was the easy part, and knowing what to code and promoting it (talking to customers, positioning, sales, etc.) was the hard part. Right now, coding is still the easy part, and knowing what to code and promoting it is the hard part.

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Matt Massicotte @massicotte.org · 21/05/2025

Programmers are usually fed a steady diet of features and bug fixes. But occasionally they get to work on performance problems. This development methodology is known as intermittent fasting.

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Aaron Gunderson @agundy.com · 06/05/2025

Spent more time and money on the mural than the racks 😭

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Aaron Gunderson @agundy.com · 27/03/2025

Yup! And then tariffs are changed one month in on your $1B multi year commitment to build a brand new manufacturing supply chain.

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Aaron Gunderson @agundy.com · 21/03/2025

Never wrote a blog post or library but at my last company we leaned really hard into live view with pure react components with callbacks plumbed to LiveView and it was nice. You can’t make modern charts, maps, tables etc without it feeling hacky in Elixir, but Elixir solve the state management👌

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Andrea Leopardi @whatyouhi.de · 01/01/2025

Super nice post about @elixir-lang.org's nimble_ownership library by Alex Martsinovich: distantprovince.by/posts/what-d... Great stuff to know about. Also, great technical writing 👏

distantprovince.by

What Does NimbleOwnership Do Anyway? | Alex Martsinovich

NimbleOwnership may not take bribes, but it certainly knows who your father is.

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Next door in Silicon Valley @nextdoorsv.bsky.social · 30/12/2024

"Saying the need for housing outweighs parking needs is like saying the need for water outweighs the need for food. Sure, you can survive on one for a bit, but not forever." PARKING IS ESSENTIAL FOR HUMAN LIFE!

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Aaron Gunderson @agundy.com · 15/12/2024

Where and when have y’all been meeting? I haven’t heard of a Boston elixir meetup before.

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Liz Fong-Jones (方禮真) @lizthegrey.com · 12/12/2024

The conversation needs to be about how data centers are causing coal plants to be kept online longer, not about water usage.

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Aaron Gunderson @agundy.com · 12/12/2024

Plausibly correct is the worst code. Debugging code that looks right but isn’t written by anyone and has no coherent strategy just doesn’t feel scalable. This is where people get stuck debugging for hours testing every assumption.

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Aaron Gunderson @agundy.com · 12/12/2024

How long before all these “coding is going away because of AI” people have giant balls of mud no one understands that just get thrown out? To me the work isn’t in the generating code, it’s writing the correct code to systematically build the product. #AI #software

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Aaron Gunderson @agundy.com · 07/12/2024

Morning Bluesky, is this a good spot for backyard #birds?

Brown and white hawk standing in the left of the frame looking past the camera to the right.

Microplastics Sommelier @leastactionhero.bsky.social · 24/11/2024

Reposted by Aaron Gunderson

there was a 1936 proposal to build a concrete ramp structure up to the midpoint of the eiffel tower so you could drive up it. and i, for one, think it’s a shame that there was never a trend of making world monuments more car-accessible.

The Eiffel Tower with an illustrated concrete arc structure built across its middle. Each side has corkscrew ramps and you can see little cars driving on it.

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Very cool! We're basically on the early stage of building out similar functionality. Right now just aggregating and pulling from Postgres, with charts defined via vegalite in elixir and handed off the a simple LiveView hook that renders the vegalite spec.

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Glad other people are out there making it happen in Elixir. Sounds like some good blog post material someday 😀

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Nice! This is what we do with Vegalite today on the Elixir side, sounds like a nice extension as the charts get more complicated.

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Pleroma / pleroma · GitLab

I've definitely referenced Plausible before. I haven't looked at it in a while but Pleroma is also a pretty big open source Elixir app. Not sure how idiomatic it is though. git.pleroma.social/pleroma/pler...

git.pleroma.social

Pleroma backend

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