Sign in

Isaac Harris-Holt

@ihh.dev
289 followers 44 following 96 posts

I sometimes make videos about Gleam. Head of Eng @ Medfin

PostsRepliesMedia
Reposted by Isaac Harris-Holt
Gleam Programming Language @gleam.run · 31/12/2025
Time to wrap up the year, let’s look at some numbers 🤓 But before we do: thank you everyone for supporting Gleam's journey in 2025! Huge thank you to every contributor, sponsor, supporter, to all the Gleamlins and Gleam-curious people. You rock! ⭐
A graphic with pink starfish reading a newspaper titled "2025". Above her is a headline "Gleam wrapped"
13811
Isaac Harris-Holt @ihh.dev · 26/09/2025
I haven't posted any Gleam videos in a little bit, but that doesn't mean I haven't been doing anything at all! Try this one on for size 👀 youtu.be/JxvCtkTPd9g?...
youtu.be
5 ways to speed up your coding workflow with Zed's multibuffers
YouTube video by Zed Industries
030
Isaac Harris-Holt @ihh.dev · 20/09/2025
I look so smug here... but it's actually quite a nice frame
140
Reposted by Isaac Harris-Holt
Code BEAM @codebeam.bsky.social · 08/09/2025
@ihh.dev CTO @ Rover teases his journey into becoming a GLEAM Guy. Hear him out and join him at Code BEAM Europe 2025! Save your spot. codebeameurope.com/talks/how-i-...
011
Reposted by Isaac Harris-Holt
Code BEAM @codebeam.bsky.social · 30/07/2025
✨ Gleam Ecosystem Growth at CodeBEAM Europe 2025! Hayleigh Thompson, Meks McClure, Michael Buhot, @runlevel0.me & @ihh.dev explore type safety, BEAM integration & functional modeling codebeameurope.com#speakers
092
Reposted by Isaac Harris-Holt
Code BEAM @codebeam.bsky.social · 22/08/2025
🚀 6 must-see talks at CodeBEAM Europe 2025: Gleam careers, workflow orchestration, VPP with Elixir, security disasters, BEAM+Rust combo, and taming 20M Oban jobs! Featuring @ihh.dev @maennchen.dev codebeameurope.com#register
093
Reposted by Isaac Harris-Holt
Gleam Programming Language @gleam.run · 24/07/2025
"We’ve started using Gleam to orchestrate all of the background jobs that happen in our system. Gleam’s type system, along with classic BEAM goodness like supervision trees, has given us total confidence that our code will handle just about anything we throw at it" - @ihh.dev ⭐
Graphic with headline "Gleam in production" and a quote: "Gleam’s type system, along with classic BEAM goodness like supervision trees, has given us total confidence that our code will handle just about anything we throw at it" - Isaac Harris-Holt, CTO at Rover
0282
Isaac Harris-Holt @ihh.dev · 22/06/2025
I have once again been nerd-sniped by @lpil.uk into writing a Gleam package. This time, it's a lightweight, high-perf client for Redis-compatible databases, called Valkyrie! The library includes a connection pool, and has been tested against Redis, Valkey, KeyDB and Dragonfly.
github.com
GitHub - Pevensie/valkyrie: A Redis and Valkey client for Gleam!
A Redis and Valkey client for Gleam! Contribute to Pevensie/valkyrie development by creating an account on GitHub.
2243
Isaac Harris-Holt @ihh.dev · 08/06/2025
I'm trying to watch Doctor Who but keep getting distracted by work. Caffeine is a bitch.
000
Reposted by Isaac Harris-Holt
Tobias Pfeiffer @pragtob.bsky.social · 02/06/2025
And now we're coming up to some @gleam.run with @ihh.dev ! Who basically youtubed himself into @gleam.run / the gleambassador! @codebeam.bsky.social Stockholm
0112
Isaac Harris-Holt @ihh.dev · 30/05/2025
There was a bug. It's now 11pm. Damnit.
040
Isaac Harris-Holt @ihh.dev · 30/05/2025
Deploying to prod at 5pm on a Friday? Try 8pm on the Friday before I leave the country for @codebeam.bsky.social Lite Stockholm 😎
A screenshot of a GitHub Action running for tag `prod-v0.16.0`
030
Isaac Harris-Holt @ihh.dev · 04/05/2025
Hey folks, it's been a little while since I've released a video. Here's one talking about how to decode dynamic data in Gleam - a super important topic! Take a look 👀 youtu.be/JPGiHrtWJCg
youtu.be
Everything you need to know about Decoders in Gleam
YouTube video by Isaac Harris-Holt
0263
Isaac Harris-Holt @ihh.dev · 30/04/2025
Check out what we've been working on for the past little while!
010
Reposted by Isaac Harris-Holt
Rover @getrover.com · 29/04/2025
can 100 unarmed vibecoders defeat 1 security audit
Screenshot of the Rover agent detecting that a vibecoder has committed their API token
021
Reposted by Isaac Harris-Holt
Lambda Days @lambdadays.bsky.social · 29/04/2025
🔹Giacomo Cavalieri & Isaac Harris-Holt: Talks on #Gleam at Lambda Days 2025🔹 @giacomocavalieri.me dives into #Squirrel, a Gleam library for #type-safe #database access, while @ihh.dev explains how Gleam can simplify #backend architecture. 🎟️ Don't miss their talks on the Lambda Days agenda!
0214
Reposted by Isaac Harris-Holt
Code BEAM @codebeam.bsky.social · 14/04/2025
What happens when you fall into a new language by accident? @ihh.dev ’s journey into Gleam proves it might just be the best mistake you ever make. codebeamstockholm.com/talks/Jumpin...
061
Isaac Harris-Holt @ihh.dev · 27/03/2025
When asked what they liked about Gleam, developers responded with: "It's very braindead" "Gleam is Haskell for normies" "The core team is very fasionable" "I don't have to configure TS" I think I've picked the right language
2131
Reposted by Isaac Harris-Holt
Rover @getrover.com · 24/03/2025
The Rover bot just stopped us from shipping a buggy feature to prod (again). You get: a better experience exploring your codebase graphs we get: to not waste another development cycle fixing it #devtools #softwaredevelopment #dev
Screenshot of a GitHub Pull request comment made by the Rover bot, detailing a potential race condition in some code
121
Reposted by Isaac Harris-Holt
Rover @getrover.com · 20/03/2025
Rover's own @ihh.dev takes us through how we implemented our own ReBAC auth system in our latest blog post Somehow, it's the least painful infra work we've ever done getrover.substack.com/p/how-we-rew... #devops #buildinpublic #dev
getrover.substack.com
How we rewrote OpenFGA in pure Postgres
TL;DR: We rewrote parts of OpenFGA in pure Postgres to make it easier to keep our authorization system up-to-date with our main database.
132
Isaac Harris-Holt @ihh.dev · 19/03/2025
If you're wondering where I've been over the last little while (and why there haven't been many videos), this is it!
020
Reposted by Isaac Harris-Holt
Rover @getrover.com · 19/03/2025
With the Rover public beta now open, treat yourself to a little coffee break and read about the problems with software incidents that inspired us to build getrover.substack.com/p/introducin... #devtools #dev #softwareengineering #launchday
getrover.substack.com
Introducing Rover
Ship fast; break nothing
022
Reposted by Isaac Harris-Holt
Rover @getrover.com · 12/03/2025
Hello, Mars #launch #startup #software #buildinpublic #devtool
132
Isaac Harris-Holt @ihh.dev · 09/03/2025
It's announcement time! For a bit of fun, I'm hosting a Gleam chess bot tournament. Details here👀 youtu.be/YOQTAI0KA9M
youtu.be
I'm hosting a Gleam chess bot tournament
YouTube video by Isaac Harris-Holt
0144
Isaac Harris-Holt @ihh.dev · 03/03/2025
People who espouse "journey over destination" have clearly never paid for a London cab
000
Isaac Harris-Holt @ihh.dev · 12/01/2025
Hey folks! It's time for a new video. Statically-typed languages are fantastic. A true blessing to society. But you're probably not using them properly. youtu.be/dMtZdPiMfb0?...
youtu.be
You could be doing more with static typing in Gleam
YouTube video by Isaac Harris-Holt
1132
Isaac Harris-Holt @ihh.dev · 05/01/2025
Hot chocolate with water is just worse
120
Isaac Harris-Holt @ihh.dev · 05/01/2025
I don't get why people watch F1 when Mario Kart is the same thing but better
2172
Isaac Harris-Holt @ihh.dev · 05/01/2025
Turning your bedroom into a recording studio is the most fun you can have with your clothes on.
A bedroom with a camera and teleprompter, 3 studio lights and soundproof panels.
171
Reposted by Isaac Harris-Holt
Giacomo Cavalieri @giacomocavalieri.me · 03/01/2025
If you like Gleam and want to help me keep working on it please consider sponsoring me, it would mean the world 💖 github.com/sponsors/gia...
github.com
Sponsor @giacomocavalieri on GitHub Sponsors
Support Giacomo's open source work on Gleam
25118
Isaac Harris-Holt @ihh.dev · 02/01/2025
My resolution this year, rather than being a goal I know I won't hit, is simply to "Try Anything Once". Anything you recommend?
100
Isaac Harris-Holt @ihh.dev · 01/01/2025
Not bad for a second ever run 😎
A Balatro winning screen
030
Isaac Harris-Holt @ihh.dev · 31/12/2024
For those who don't really get why creators are making a big deal of the whole Honey drama, 91.8% of my income this year (excluding refunds) has been from affiliate revenue. If Honey worked on the sites I'm affiliated with, I probably would've lost thousands.
A screenshot of a banking app showing a total of £19,473 of income, £16,322 of which was from affiliate revenue, and £1696 of which was from refunds.
260
Isaac Harris-Holt @ihh.dev · 28/12/2024
Homemade acoustic panels coming along nicely
Stacked wooden frames containing hemp insulation
040
Reposted by Isaac Harris-Holt
Louis Pilfold @lpil.uk · 27/12/2024
I travelled to my parents by electric assist bicycle this Christmas. It was really fun and satisfactory practical! Give it a go! Cycling is fantastic for the body and the local community.
A screenshot of apple fitness showing the 26th December. On that day I did a 42km outdoor cycle, and on the 25th the day before I did a 43km outdoor cycle.
3261
Isaac Harris-Holt @ihh.dev · 22/12/2024
By the way, folks, I've just released V1 of Pevensie, my backend application framework for Gleam! It's taken a little longer than I would've liked, but it's here. Use it to get your Gleam APIs off the ground quickly! github.com/Pevensie/pev...
github.com
GitHub - Pevensie/pevensie: The backend application framework for Gleam!
The backend application framework for Gleam! Contribute to Pevensie/pevensie development by creating an account on GitHub.
2181
Reposted by Isaac Harris-Holt
Mark Holmes @markholmes.bsky.social · 22/12/2024
Woah! Pevensie hits 1.0! Congrats to @ihh.dev! Pevensie is a backend application framework for @gleam.run that comes with drivers for things like authentication and caching. This is really exciting!! hexdocs.pm/pevensie/ind...
hexdocs.pm
pevensie · v1.0.0SearchDocument
The backend application framework for Gleam!
162
Reposted by Isaac Harris-Holt
MapleLeaf 🍁 @mapleleaf.dev · 18/12/2024
honestly, one of my favorite things about gleam is the namespace separation i can have a module, function, and variable all named "grid" and not run into name conflict issues that, on top of variable shadowing, makes naming things so... fearless
031
Isaac Harris-Holt @ihh.dev · 18/12/2024
What is it with every app having a Spotify Wrapped equivalent these days? Thanks Crunchyroll, but I don't need to know that I've spent 400 hours watching anime 😭
190
Isaac Harris-Holt @ihh.dev · 15/12/2024
How am I only just now watching Arcane?? It's like, so good
060
Isaac Harris-Holt @ihh.dev · 15/12/2024
Recursion is hard, but it doesn't have to be! I decided that Gleam is a simple enough language for teaching the concept, so I made this :) youtu.be/debOFwJyXyk?...
youtu.be
Learn recursion with Gleam
YouTube video by Isaac Harris-Holt
070
Isaac Harris-Holt @ihh.dev · 14/12/2024
Average British interaction: Me: *holds door open for someone* Them: Thank you Me: Thank you Them: You're welcome Both of us:
media.tenor.com
a man with a beard and long hair is talking about visible confusion .
Alt: a man with a beard and long hair is talking about visible confusion .
030
Isaac Harris-Holt @ihh.dev · 14/12/2024
Don't be this guy.
A YouTube comment saying the following: The type safety myth. love to know who these people are who need to stop themselves assigning a string to the variable 'number.
Do you know what happens to python programmers who don't use type hinting? Nothing. Because mixing up types is either a sign of gross incompetence or, far more likely, the monster lurking in the child's cupboard. You know, the one that isn't there. If you're doing it for performance - that's perfectly valid, all power to you. If you're doing it as a crutch because you think you need your hand held - you almost certainly don't. Take those stabilisers off and just ride your bike like an adult.
5101
Isaac Harris-Holt @ihh.dev · 13/12/2024
I will never understand how people condition themselves not to want (need) a sweet treat after every meal
330
Isaac Harris-Holt @ihh.dev · 10/12/2024
Hey folks! We're hosting another Gleam Meetup in London in time for Christmas! Come along for drinks, chat and festive cheer! Sign up at the link here: meetdown.app/group/58acfb...
An invitation to the Gleam London meetup in Paddington at 7pm on December 19th
020
Isaac Harris-Holt @ihh.dev · 10/12/2024
Join us!
000
Isaac Harris-Holt @ihh.dev · 08/12/2024
God, I do pull some funny faces when recording
The author pulling a funny face
040
Isaac Harris-Holt @ihh.dev · 05/12/2024
Woo! I've also thrown my hat in the ring. Make sure to sign up for a notification of when early bird tickets are out! www.lambdadays.org/lambdadays20...
lambdadays.org
Lambda Days 2025
<p>Functional programming is taking Kraków by storm. Scala, Erlang, Haskell, Elm, Elixir, Lisp and Clojure are scoring points with IT professionals, computer science students and technology geeks.</p>...
021
Reposted by Isaac Harris-Holt
Gleam Programming Language @gleam.run · 03/12/2024
Gleam v1.6.3 is out now, with a fix for compiling on older versions of Erlang/OTP github.com/gleam-lang/g...
github.com
Release v1.6.3 · gleam-lang/gleam
0254
Isaac Harris-Holt @ihh.dev · 03/12/2024
Friendly reminder not to include your AoC inputs in your public Git repos :)
A screenshot of the about page from the Advent of Code website that asks users not to redistribute parts of the AoC site, including puzzle text or inputs.
170