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Pablo Costas SΓ‘nchez

@pablocostass

Software Engineer (Erlang/Elixir/Rust πŸ’œ). Erlang Ecosystem Foundation member. I like distributed systems, functional programming, property-based testing. he/him 🌈

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24.07.2023
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Latest posts by Pablo Costas SΓ‘nchez @pablocostass

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Building Phoenix at scale? ElixirConf EU 2026 wants your insights.
Topics: Advanced Contexts, performance optimization, LiveView architecture, testing strategies.
CFT closes Jan 6 www.elixirconf.eu#cft

04.12.2025 13:04 πŸ‘ 5 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1
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all i'm saying is if we average 5 stars a day lustre can hit 2k in time for my birthday πŸ₯ΊπŸ‘‰πŸ‘ˆ thatd be pretty cool huh huh

what if i promise a release when we hit 2k πŸ‘€

github.com/lustre-labs/... gogogogogo

07.12.2025 15:03 πŸ‘ 37 πŸ” 10 πŸ’¬ 2 πŸ“Œ 4

ElixirConf EU in Malaga. Anyone know the Elixir community there? I like to connect locally and maybe we can do some of those nice satellite events. But that hinges on some local company, hackerspace or similar being game to host. Feel free to reach out, I'm everywhere.

#elixirlang

03.12.2025 14:10 πŸ‘ 7 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

cloudflare's on-duty IT staff bangs on the doors which I have padlocked from the inside as I calmly break open lava lamp after lava lamp and drink the contents

18.11.2025 13:59 πŸ‘ 2111 πŸ” 561 πŸ’¬ 17 πŸ“Œ 10

I don't have "too many tabs open." My tabs are flourishing. Healthy. Bountiful. The ecosystem is thriving.

17.11.2025 17:04 πŸ‘ 658 πŸ” 188 πŸ’¬ 7 πŸ“Œ 9
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HackUDC β€” Accept the Challenge Coming soon β€” February 2026. HackUDC is an open-source student hackathon by GPUL at the University of A CoruΓ±a.

Hola a todos!
πŸ“’ Las inscripciones para la cuarta ediciΓ³n de HackUDC,ya estan ABIERTAS!!
πŸ—“οΈ Del 27 de febrero al 1 de marzo, ven a desarrollar un proyecto open source basΓ‘ndote en los retos que proponen los patrocinadores,

17.11.2025 11:01 πŸ‘ 2 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Sponsor @giacomocavalieri on GitHub Sponsors Support Giacomo's open source work on Gleam

If you like Gleam and want to help me keep working on it please consider sponsoring me, it would mean the world πŸ’– github.com/sponsors/gia...

03.01.2025 13:01 πŸ‘ 45 πŸ” 17 πŸ’¬ 2 πŸ“Œ 4
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The power of pattern matching for implementing protocols!

Nelson Vides at @codebeam.bsky.social

06.11.2025 10:14 πŸ‘ 17 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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@elbrujohalcon.bsky.social : What's new with Elvis? The Erlang linter gets even better.

05.11.2025 11:36 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Ah, and last time I was in Berlin I went bouldering to "urban apes" and "ostbloc". Both gyms are nice and I can vouch for them, though I prefer the former (and I think they opened a new place I haven't gone to yet)

04.11.2025 13:40 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Works for me! If y'all end up planning it during the conference, since I won't be around, please ping @pragtob.bsky.social (I'll be crashing at his place) or keep me posted over here :)

In any case, best of luck with your talk!!

04.11.2025 13:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Sure thing :)

How long are you gonna be staying in Berlin? Friday/Saturday would be golden for me, and you could rest from the conference

02.11.2025 13:51 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Yaaaay! When would it best work for you?

02.11.2025 08:22 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

@lpil.uk I believe I've seen you tweet about having sessions in London before πŸ‘€

30.10.2025 17:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I might be taking shorts in the dark asking here but would anyone attending Code BEAM Europe be up for some bouldering in Berlin?

I'm not gonna be attending the conference, as I'm only arriving Thursday around 3pm but I'll be in the city till Sunday morning :)

30.10.2025 17:39 πŸ‘ 4 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0
Elixir Curitiba Evento sobre Elixir e linguagens do ecossistema de Erlang em Curitiba

πŸ‡§πŸ‡· Elixir Curitiba 2025 is coming!

On November 8, the BEAM community gathers once again in Curitiba, Brazil for a full day dedicated to Elixir and the Erlang ecosystem.

A welcoming space for all levels β€” from newcomers to experts. πŸ’œ

πŸ‘‰ curitiba.elixiremfoco.com

22.10.2025 17:28 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Elixir v1.19 released: enhanced type checking, broader type inference, and up to 4x faster compilation for large projects Elixir v1.19 released: type checking of protocols and anonymous functions, broader type inference, improved compile times, and more

Elixir 1.19 released! πŸŽ‰

This one had a lengthier rc period.

It brings type system improvements and compile time improvements in large projects among other things πŸš€

elixir-lang.org/blog/2025/10...

16.10.2025 08:31 πŸ‘ 60 πŸ” 19 πŸ’¬ 1 πŸ“Œ 1
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DHH Is Way Worse Than I Thought | jakelazaroff.com DHH's politics are not normal. Maybe they used to be, I don't know, but as of right now the dude is_way outside of what most people would consider moral or acceptable.

show this to anyone else you know who also assumed DHH was just a normal conservative dude rather than a raging white supremacist lunatic

02.10.2025 12:57 πŸ‘ 436 πŸ” 167 πŸ’¬ 31 πŸ“Œ 27
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Announcing the 16th Web Engines Hackfest | Igalia Igalia is an open source consultancy specialised in the development of innovative projects and solutions. Our engineers have expertise in a wide range of technological areas, including browsers and cl...

Save the date! The Web Engines Hackfest 2026 will be held from June 15 to 17 in A CoruΓ±a (Galicia, Spain) www.igalia.com/2025/10/01/A...

01.10.2025 12:09 πŸ‘ 14 πŸ” 9 πŸ’¬ 0 πŸ“Œ 1

Radiology is a specialty that was long promised to be automated via ML, but that still persists today. There are fascinating studies on AI/human joint performance around it.

I appreciate this article, and the distinction between benchmarks settings and the more situated nature of real work.

27.09.2025 03:57 πŸ‘ 16 πŸ” 4 πŸ’¬ 0 πŸ“Œ 2

Professor @lauramcastro.bsky.social won one of the two best reviewer awards at @se4fp.github.io.

Congratulations, Laura!

25.09.2025 20:31 πŸ‘ 7 πŸ” 3 πŸ’¬ 1 πŸ“Œ 1
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RolPorLaEsperanza - Twitch RolPorLaEsperanza streams live on Twitch! Check out their videos, sign up to chat, and join their community.

PRESENTACIΓ“N DE ROL POR LA ESPERANZA 2025

Β‘Vuelve la maratΓ³n solidaria rolera que ha recaudado mΓ‘s de 40.000€ en favor de la prevenciΓ³n del suicidio! πŸ‘€ Este fin de semana presentamos el evento, damos la fecha y charlamos...

πŸ—“οΈ SΓ‘bado 20 de Septiembre
⏰ A las 21:30
⚠️ www.twitch.tv/rolporlaespe...

19.09.2025 15:40 πŸ‘ 97 πŸ” 92 πŸ’¬ 2 πŸ“Œ 7
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Some pictures of the afternoon lineup. We learned about the importance of teamwork, the wonders of the Ash framework, why β€œlagom” is the best way to go and even how to write a book!
#goatmire #elixir

11.09.2025 20:27 πŸ‘ 16 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

A key difference here is that while either can be incorrect, the structure of Wikipedia *creates context* and the structure of LLMs *destroys context*

Wikipedia has linked sources and an edit history showing where information came from and who added it when

An LLM just generates text

26.04.2025 18:39 πŸ‘ 4047 πŸ” 1220 πŸ’¬ 60 πŸ“Œ 41
Groxio Consulting - Expert Elixir Development Expert Elixir consulting from the authors of key Elixir books. System architecture, training, and development services.

The Groxio teamβ€”Bruce Tate, Paulo Valim, and myselfβ€”are fresh off of a project where we helped scale an application and its development team all the way to launch. If your company could use #ElixirLang #Consulting help from one or more of us, let’s talk! groxio.com

02.09.2025 16:30 πŸ‘ 17 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0
A banner with pink star, Gleam's mascot, standing behind a conference stand with GG logo on it. The text says "Gleam Gathering 2026, 21 February, Bristol, UK. Call for talks is open! Ticket sale is on!"

A banner with pink star, Gleam's mascot, standing behind a conference stand with GG logo on it. The text says "Gleam Gathering 2026, 21 February, Bristol, UK. Call for talks is open! Ticket sale is on!"

Details confirmed for the first ever Gleam conference, brought to you by @crowdhailer.bsky.social: Gleam Gathering is happening on 21st February 2026 in Bristol, England.

First speakers confirmed are from our Core Team: @lpil.uk @hayleigh.dev and @giacomocavalieri.me ⭐

gleamgathering.com

14.08.2025 16:54 πŸ‘ 42 πŸ” 11 πŸ’¬ 1 πŸ“Œ 5
Text from a teen: are developers/computer science majors gonan be replaced with ai? 

Reply from their parent: First of all, stay off cscareerquestions

Text from a teen: are developers/computer science majors gonan be replaced with ai? Reply from their parent: First of all, stay off cscareerquestions

The day comes for every parent when they have to have The Talk

12.08.2025 17:11 πŸ‘ 692 πŸ” 64 πŸ’¬ 15 πŸ“Œ 2

I’m starting to look around for my next role!

I'm a deeply technical engineer, with over a decade of professional experience in domains from cyber security to distributed systems and decentralized tech.

My personal projects have spanned embedded systems to biohackingβ€”I love learning new things.

05.08.2025 17:47 πŸ‘ 41 πŸ” 14 πŸ’¬ 1 πŸ“Œ 2
Programming, scripting, and markup languages

Rust is yet again the most admired programming language (72%), followed by Gleam (70%), Elixir (66%) and Zig (64%). Gleam is a new addition to the list, and for good reason - developers like it!
Which programming, scripting, and markup languages have you done extensive development work in over the past year, and which do you want to work in over the next year? (If you both worked with the language and want to continue to do so, please check both boxes in that row.)

Programming, scripting, and markup languages Rust is yet again the most admired programming language (72%), followed by Gleam (70%), Elixir (66%) and Zig (64%). Gleam is a new addition to the list, and for good reason - developers like it! Which programming, scripting, and markup languages have you done extensive development work in over the past year, and which do you want to work in over the next year? (If you both worked with the language and want to continue to do so, please check both boxes in that row.)

Oh my gosh! Gleam got #2 most admired programming language in the Stack Overflow survey!
We're on the podium with Rust and Elixir!

29.07.2025 18:37 πŸ‘ 127 πŸ” 21 πŸ’¬ 11 πŸ“Œ 5

Forgot to post here so... Hello network! It's time for me to move on and I'm kicking off the search for my next role. Let me know if you're looking for someone who obsessively ships, takes on whatever work has the highest impact, and consistently gets feedback like "you're too impatient".

29.07.2025 19:42 πŸ‘ 13 πŸ” 13 πŸ’¬ 0 πŸ“Œ 0