Hec Perez
@hecperez.com
AI & Elixir team lead/manager at Doofinder, creator of @notes.club (Livebooks) and YouCongress.org (AI Safety & Governance). Organizer of the Elixir Madrid meetup.
I beta tested this and it’s amazing.
I asked Claude Code: find all html and accessibility errors of YouCongress via Rocket Validator’s MCP tool and fix them.
After a few runs, all green. ✅
I asked Claude Code: find all html and accessibility errors of YouCongress via Rocket Validator’s MCP tool and fix them.
After a few runs, all green. ✅
Talk to Your Accessibility Data!
Now in public beta, we have an official MCP that you can use to connect your accessibility validation reports to Claude and ask it to run reports, recheck, summarise issues, get a how-to-fix guide... whatever you can imagine
rocketvalidator.com/mcp
Now in public beta, we have an official MCP that you can use to connect your accessibility validation reports to Claude and ask it to run reports, recheck, summarise issues, get a how-to-fix guide... whatever you can imagine
rocketvalidator.com/mcp
February 10, 2026 at 5:32 PM
I beta tested this and it’s amazing.
I asked Claude Code: find all html and accessibility errors of YouCongress via Rocket Validator’s MCP tool and fix them.
After a few runs, all green. ✅
I asked Claude Code: find all html and accessibility errors of YouCongress via Rocket Validator’s MCP tool and fix them.
After a few runs, all green. ✅
Elixir Madrid workshop materials: LLMs, Agents & MCP in Elixir apps.
Livebook examples → notes.club/hectorperez/...
#ElixirLang
Livebook examples → notes.club/hectorperez/...
#ElixirLang
Notesclub
· Livebook Notebooks (Elixir)
notes.club
January 31, 2026 at 9:38 AM
Elixir Madrid workshop materials: LLMs, Agents & MCP in Elixir apps.
Livebook examples → notes.club/hectorperez/...
#ElixirLang
Livebook examples → notes.club/hectorperez/...
#ElixirLang
This Wednesday, I’ll be teaching a workshop on LLMs, Agents, and MCP in Elixir.
We are fully booked! 🚫🪑
However, if you want me to send you the Livebook notebook with all the content afterwards, just drop a comment or DM me.
#ElixirLang
We are fully booked! 🚫🪑
However, if you want me to send you the Livebook notebook with all the content afterwards, just drop a comment or DM me.
#ElixirLang
January 24, 2026 at 10:02 AM
This Wednesday, I’ll be teaching a workshop on LLMs, Agents, and MCP in Elixir.
We are fully booked! 🚫🪑
However, if you want me to send you the Livebook notebook with all the content afterwards, just drop a comment or DM me.
#ElixirLang
We are fully booked! 🚫🪑
However, if you want me to send you the Livebook notebook with all the content afterwards, just drop a comment or DM me.
#ElixirLang
Second event of the year in Elixir Madrid: a smiling plant powered by Erlang on embedded hardware by Icia Carro, an Erlang/OTP project on embedded boards + pizza & drinks. www.meetup.com/madrid-elixi...
Eustaquia: A smiling plant powered by Erlang on embedded hardware | Icia Carro, Thu, Feb 12, 2026, 7:00 PM | Meetup
Imagine a plant that greets you with a smile when it’s well watered and slowly turns sad when it’s thirsty.
(Please enter your full name on https://tally.so/r/WOExxj to ac
www.meetup.com
January 10, 2026 at 4:57 PM
Second event of the year in Elixir Madrid: a smiling plant powered by Erlang on embedded hardware by Icia Carro, an Erlang/OTP project on embedded boards + pizza & drinks. www.meetup.com/madrid-elixi...
The biggest near-term risk from AI isn’t “evil superintelligence.”
It’s a coordination failure.
I expand on why this matters using the Fermi Paradox as a metaphor:
👉 open.substack.com/pub/networks...
It’s a coordination failure.
I expand on why this matters using the Fermi Paradox as a metaphor:
👉 open.substack.com/pub/networks...
Why the AGI race may be bigger near-term existential risk than misalignment
A Fermi-paradox metaphor for coordination failure
open.substack.com
January 10, 2026 at 9:42 AM
The biggest near-term risk from AI isn’t “evil superintelligence.”
It’s a coordination failure.
I expand on why this matters using the Fermi Paradox as a metaphor:
👉 open.substack.com/pub/networks...
It’s a coordination failure.
I expand on why this matters using the Fermi Paradox as a metaphor:
👉 open.substack.com/pub/networks...
Reposted by Hec Perez
Just tried asking Claude (desktop) to create a simple Livebook tool for me, and it worked!
Once done, I can click "Open in Livebook" and it opens directly in my Livebook desktop 🎉
Try with "create a livebook to..."
#ElixirLang
Once done, I can click "Open in Livebook" and it opens directly in my Livebook desktop 🎉
Try with "create a livebook to..."
#ElixirLang
January 5, 2026 at 6:48 PM
Just tried asking Claude (desktop) to create a simple Livebook tool for me, and it worked!
Once done, I can click "Open in Livebook" and it opens directly in my Livebook desktop 🎉
Try with "create a livebook to..."
#ElixirLang
Once done, I can click "Open in Livebook" and it opens directly in my Livebook desktop 🎉
Try with "create a livebook to..."
#ElixirLang
Empiezo el año impartiendo este taller de IA en el meetup de Elixir Madrid.
@jaimeiniesta.com gracias por compartir 🙌 ¡Nos vemos allí!
@jaimeiniesta.com gracias por compartir 🙌 ¡Nos vemos allí!
Este taller práctico de LLMs, agentes y MCP con Elixir de @hecperez.com pinta estupendo, ¿nos vemos allí?
www.meetup.com/madrid-elixi...
#ElixirLang #Madrid #AI
www.meetup.com/madrid-elixi...
#ElixirLang #Madrid #AI
Taller práctico: LLMs, agentes y MCP en Elixir | Héctor Pérez, Wed, Jan 28, 2026, 7:00 PM | Meetup
¿Quieres integrar modelos de lenguaje (LLMs) y agentes en Elixir y exponer herramientas de tu app vía MCP (Model Context Protocol) para poder usarlas desde ChatGPT, Claude
www.meetup.com
December 31, 2025 at 10:30 AM
Empiezo el año impartiendo este taller de IA en el meetup de Elixir Madrid.
@jaimeiniesta.com gracias por compartir 🙌 ¡Nos vemos allí!
@jaimeiniesta.com gracias por compartir 🙌 ¡Nos vemos allí!
Most AIs compress disagreement into one answer.
Governance needs the opposite: sourced quotes, stance-labeled (For / Abstain / Against), linked to primary sources.
open.substack.com/pub/networks...
Governance needs the opposite: sourced quotes, stance-labeled (For / Abstain / Against), linked to primary sources.
open.substack.com/pub/networks...
Human testimony in the age of AI
Why public decisions need sourced quotes, not just AI answers
open.substack.com
December 28, 2025 at 9:37 AM
Most AIs compress disagreement into one answer.
Governance needs the opposite: sourced quotes, stance-labeled (For / Abstain / Against), linked to primary sources.
open.substack.com/pub/networks...
Governance needs the opposite: sourced quotes, stance-labeled (For / Abstain / Against), linked to primary sources.
open.substack.com/pub/networks...
I signed the "superintelligence statement". Yet, beyond "flourish or doom", there’s a quieter risk:
If the US/China build it now, they'll enforce a "non-proliferation" to keep it that way.
That’s how a Perpetual Technological Cage begins for the rest of us:
networksocieties.com/p/the-perpet...
If the US/China build it now, they'll enforce a "non-proliferation" to keep it that way.
That’s how a Perpetual Technological Cage begins for the rest of us:
networksocieties.com/p/the-perpet...
The Perpetual Technological Cage
Unless superintelligence is developed under a global consensus, the risks will be shared by all, but the upside won't. This is why I signed the superintelligence statement.
networksocieties.com
October 22, 2025 at 8:34 AM
I signed the "superintelligence statement". Yet, beyond "flourish or doom", there’s a quieter risk:
If the US/China build it now, they'll enforce a "non-proliferation" to keep it that way.
That’s how a Perpetual Technological Cage begins for the rest of us:
networksocieties.com/p/the-perpet...
If the US/China build it now, they'll enforce a "non-proliferation" to keep it that way.
That’s how a Perpetual Technological Cage begins for the rest of us:
networksocieties.com/p/the-perpet...
We’ve removed AI-generated perspectives. All expert and public-figure stances on YouCongress now come from verifiable, sourced quotes—so you can delegate with confidence.
September 14, 2025 at 3:04 PM
We’ve removed AI-generated perspectives. All expert and public-figure stances on YouCongress now come from verifiable, sourced quotes—so you can delegate with confidence.
We are still looking for a second speaker for the Global Elixir Meetups event in Madrid.
25th Sept in Madrid: 1. Journey to a Better Elixir Experience, 2. TBD (Global Elixir Meetups) www.meetup.com/madrid-elixi...
Global Elixir Meetups: 1. Journey to a Better Elixir Experience, 2. TBD, Thu, Sep 25, 2025, 7:00 PM | Meetup
As part of the Global Elixir Meetups week, we'll have two speakers today.
(Rellena formulario https://tally.so/r/3xAAME para control de acceso + calcular pizza. Gracias!)
www.meetup.com
September 14, 2025 at 3:03 PM
We are still looking for a second speaker for the Global Elixir Meetups event in Madrid.
Discovering the best Livebook notebooks on notes.club got major upgrades!
🏷️ Tags, from AI to Elixir tutorials.
🏆 AI Ratings to see the top-rated notebooks for any tag, Hex package, or author.
🤖 Follow @notes.club to get the best notebooks delivered to your feed.
#Elixir #Livebook #MyElixirStatus
🏷️ Tags, from AI to Elixir tutorials.
🏆 AI Ratings to see the top-rated notebooks for any tag, Hex package, or author.
🤖 Follow @notes.club to get the best notebooks delivered to your feed.
#Elixir #Livebook #MyElixirStatus
September 9, 2025 at 6:11 PM
Discovering the best Livebook notebooks on notes.club got major upgrades!
🏷️ Tags, from AI to Elixir tutorials.
🏆 AI Ratings to see the top-rated notebooks for any tag, Hex package, or author.
🤖 Follow @notes.club to get the best notebooks delivered to your feed.
#Elixir #Livebook #MyElixirStatus
🏷️ Tags, from AI to Elixir tutorials.
🏆 AI Ratings to see the top-rated notebooks for any tag, Hex package, or author.
🤖 Follow @notes.club to get the best notebooks delivered to your feed.
#Elixir #Livebook #MyElixirStatus
25th Sept in Madrid: 1. Journey to a Better Elixir Experience, 2. TBD (Global Elixir Meetups) www.meetup.com/madrid-elixi...
Global Elixir Meetups: 1. Journey to a Better Elixir Experience, 2. TBD, Thu, Sep 25, 2025, 7:00 PM | Meetup
As part of the Global Elixir Meetups week, we'll have two speakers today.
(Rellena formulario https://tally.so/r/3xAAME para control de acceso + calcular pizza. Gracias!)
www.meetup.com
September 4, 2025 at 6:19 PM
25th Sept in Madrid: 1. Journey to a Better Elixir Experience, 2. TBD (Global Elixir Meetups) www.meetup.com/madrid-elixi...
Reposted by Hec Perez
The new Elixir LSP, Expert, is now available! 🎉
August 29, 2025 at 9:00 AM
The new Elixir LSP, Expert, is now available! 🎉
We've fixed a bug that was causing the notes.club account to post duplicates. The feed is now clear and we're back to sharing great new Livebook notebooks. Thanks for your patience!
August 26, 2025 at 5:23 PM
We've fixed a bug that was causing the notes.club account to post duplicates. The feed is now clear and we're back to sharing great new Livebook notebooks. Thanks for your patience!
Reposted by Hec Perez
Broadway by Andrea Leopardi https://notes.club/whatyouhide/guide_async_processing_in_elixir/05-broadway #ElixirLang
August 23, 2025 at 4:00 PM
Broadway by Andrea Leopardi https://notes.club/whatyouhide/guide_async_processing_in_elixir/05-broadway #ElixirLang
Reposted by Hec Perez
Reposted by Hec Perez
Let's build GPT from scratch! w/ Nx and Axon by wtedw https://notes.club/wtedw/gpt-from-scratch/gpt-dev #ElixirLang
August 16, 2025 at 12:00 PM
Let's build GPT from scratch! w/ Nx and Axon by wtedw https://notes.club/wtedw/gpt-from-scratch/gpt-dev #ElixirLang
Reposted by Hec Perez
MCP Experiments by Aleksandar https://notes.club/isavita/mcp_experiments/mcp_experiments #ElixirLang
August 15, 2025 at 12:00 AM
MCP Experiments by Aleksandar https://notes.club/isavita/mcp_experiments/mcp_experiments #ElixirLang
Reposted by Hec Perez
Extracting data from images of Receipts by mikkihugo https://notes.club/mikkihugo/instructor_gleam/pages/cookbook/ocr-receipts-with-gpt4o #ElixirLang
August 13, 2025 at 12:00 PM
Extracting data from images of Receipts by mikkihugo https://notes.club/mikkihugo/instructor_gleam/pages/cookbook/ocr-receipts-with-gpt4o #ElixirLang
Exciting pivot: Refocusing YouCongress on delegated polling for AI safety policy! From general AI topics, we're now honing in on expert & public opinions to guide governance and cut risks. youcongress.com
August 11, 2025 at 7:56 PM
Exciting pivot: Refocusing YouCongress on delegated polling for AI safety policy! From general AI topics, we're now honing in on expert & public opinions to guide governance and cut risks. youcongress.com
Reposted by Hec Perez
Discover a new Elixir Livebook notebook every 4 hours! 🚀
Follow our account to help us get enough reputation for Bluesky to activate clickable links in our posts. Thanks!
Also, star your favourite notebooks on notes.club to see them featured here.
#ElixirLang
Follow our account to help us get enough reputation for Bluesky to activate clickable links in our posts. Thanks!
Also, star your favourite notebooks on notes.club to see them featured here.
#ElixirLang
notes.club (@notesclub.bsky.social)
Explore Livebooks. ⭐ Star your favorites on notes.club and see them featured here. Built by @hecperez.bsky.social
notesclub.bsky.social
August 9, 2025 at 4:36 PM
Discover a new Elixir Livebook notebook every 4 hours! 🚀
Follow our account to help us get enough reputation for Bluesky to activate clickable links in our posts. Thanks!
Also, star your favourite notebooks on notes.club to see them featured here.
#ElixirLang
Follow our account to help us get enough reputation for Bluesky to activate clickable links in our posts. Thanks!
Also, star your favourite notebooks on notes.club to see them featured here.
#ElixirLang
🔍 Full‑text search is here on notes.club!
Explore what the community is building and discover hidden gems. #ElixirLang #Livebook
Explore what the community is building and discover hidden gems. #ElixirLang #Livebook
August 2, 2025 at 6:23 PM
🔍 Full‑text search is here on notes.club!
Explore what the community is building and discover hidden gems. #ElixirLang #Livebook
Explore what the community is building and discover hidden gems. #ElixirLang #Livebook
Would anyone find useful that we automatically share liked Livebook notebooks from notes.club here on Bluesky? We already post them to X. #ElixirLang
Notesclub
· Livebook Notebooks (Elixir)
notes.club
August 2, 2025 at 1:03 PM
Would anyone find useful that we automatically share liked Livebook notebooks from notes.club here on Bluesky? We already post them to X. #ElixirLang