Andrei Pfeiffer
@andreipfeiffer.dev
Code Designer, fighting software entropy
Reposted by Andrei Pfeiffer
We just scheduled our next tim.js edition. Meet us on Nov 26th for a topic that goes beyond JavaScript. www.meetup.com/tim-js/event...
tim.js meetup #102, Wed, Nov 26, 2025, 6:30 PM | Meetup
Hello JavaScripters, ready for the last presentation this year? This time we are meeting up at Haufe. Here's the agenda: \*\*\* **Beyond Copy-Paste: Understanding LLMs an
www.meetup.com
November 18, 2025 at 1:40 PM
We just scheduled our next tim.js edition. Meet us on Nov 26th for a topic that goes beyond JavaScript. www.meetup.com/tim-js/event...
Reposted by Andrei Pfeiffer
📝 Importing vs fetching JSON
JSON imports are now supported cross-browser, but when would you use them rather than fetch()?
jakearchibald.com/2025/importi...
JSON imports are now supported cross-browser, but when would you use them rather than fetch()?
jakearchibald.com/2025/importi...
Importing vs fetching JSON
They behave differently, so make sure you pick the right one.
jakearchibald.com
October 22, 2025 at 2:50 PM
📝 Importing vs fetching JSON
JSON imports are now supported cross-browser, but when would you use them rather than fetch()?
jakearchibald.com/2025/importi...
JSON imports are now supported cross-browser, but when would you use them rather than fetch()?
jakearchibald.com/2025/importi...
Reposted by Andrei Pfeiffer
📢 We're happy to announce the dates for the 2026 edition. 🎉
Mark your calendars, share the good news with your fellow JS enthusiasts, and start planning your trip to Cluj. 🐻💙
#JSHeroes #TechConference #TechInnovation
Mark your calendars, share the good news with your fellow JS enthusiasts, and start planning your trip to Cluj. 🐻💙
#JSHeroes #TechConference #TechInnovation
July 15, 2025 at 1:26 PM
📢 We're happy to announce the dates for the 2026 edition. 🎉
Mark your calendars, share the good news with your fellow JS enthusiasts, and start planning your trip to Cluj. 🐻💙
#JSHeroes #TechConference #TechInnovation
Mark your calendars, share the good news with your fellow JS enthusiasts, and start planning your trip to Cluj. 🐻💙
#JSHeroes #TechConference #TechInnovation
Reposted by Andrei Pfeiffer
📺 2025 recordings are live!
All the talks from #JSHeroes 2025 are now available on our YouTube channel:
👉 bit.ly/3GEBiUf
Enjoy & share them with fellow JS enthusiasts! 💙
#TechConference #TechInnovation #JavaScriptTrends
All the talks from #JSHeroes 2025 are now available on our YouTube channel:
👉 bit.ly/3GEBiUf
Enjoy & share them with fellow JS enthusiasts! 💙
#TechConference #TechInnovation #JavaScriptTrends
JSHeroes 2025
Share your videos with friends, family, and the world
bit.ly
July 10, 2025 at 12:47 PM
📺 2025 recordings are live!
All the talks from #JSHeroes 2025 are now available on our YouTube channel:
👉 bit.ly/3GEBiUf
Enjoy & share them with fellow JS enthusiasts! 💙
#TechConference #TechInnovation #JavaScriptTrends
All the talks from #JSHeroes 2025 are now available on our YouTube channel:
👉 bit.ly/3GEBiUf
Enjoy & share them with fellow JS enthusiasts! 💙
#TechConference #TechInnovation #JavaScriptTrends
Reposted by Andrei Pfeiffer
Mom look! I'm on the Platformatic blog 🎉
Unpacking Config & Env Variables in Node.js
Learn how to manage Node.js configuration effectively to avoid security risks, ensure reliability, and stop losing sleep over misconfigurations
blog.platformatic.dev
June 12, 2025 at 6:00 AM
Mom look! I'm on the Platformatic blog 🎉
Reposted by Andrei Pfeiffer
One of the conferences where I spoke about this has a recording available now, see here Andrei: www.youtube.com/watch?v=YbQh...
[VDBUH2025] Liran Tal - Friend or Foe? TypeScript Security Fallacies
YouTube video by Devoxx
www.youtube.com
June 6, 2025 at 1:05 PM
One of the conferences where I spoke about this has a recording available now, see here Andrei: www.youtube.com/watch?v=YbQh...
Reposted by Andrei Pfeiffer
June 5, 2025 at 1:48 PM
Reposted by Andrei Pfeiffer
Post conference vibes ❤️ Another amazing group of people I had the privilege to interact with over the past few days at @jsheroes.io #JSHeroes2025
June 1, 2025 at 2:52 PM
Post conference vibes ❤️ Another amazing group of people I had the privilege to interact with over the past few days at @jsheroes.io #JSHeroes2025
🤜🤛
Remember to high five your favorite speaker (we recommend waiting til they are off the stage though) #JSHeroes #JSHeroes2025
May 30, 2025 at 12:03 PM
🤜🤛
Reposted by Andrei Pfeiffer
To kick off the 2025 edition, a friend of the house Andrei Pfeiffer (@andreipfeiffer.dev) takes on the stage with "The code etymologist" #JSHeroes #JSHeroes2025
May 29, 2025 at 6:43 AM
To kick off the 2025 edition, a friend of the house Andrei Pfeiffer (@andreipfeiffer.dev) takes on the stage with "The code etymologist" #JSHeroes #JSHeroes2025
Reposted by Andrei Pfeiffer
So happy to see @andreipfeiffer.dev back on the @jsheroes.io stage! We are live ❤️
May 29, 2025 at 6:58 AM
So happy to see @andreipfeiffer.dev back on the @jsheroes.io stage! We are live ❤️
Reposted by Andrei Pfeiffer
That's a great advice from @andreipfeiffer.dev
Using runtime schema validation (like Zod) to ensure we have all the required ENV variables setup... Otherwise, get an explicit error about what's missing
Read more www.jacobparis.com/content/type...
#JSHeroes2025
Using runtime schema validation (like Zod) to ensure we have all the required ENV variables setup... Otherwise, get an explicit error about what's missing
Read more www.jacobparis.com/content/type...
#JSHeroes2025
May 29, 2025 at 6:58 AM
That's a great advice from @andreipfeiffer.dev
Using runtime schema validation (like Zod) to ensure we have all the required ENV variables setup... Otherwise, get an explicit error about what's missing
Read more www.jacobparis.com/content/type...
#JSHeroes2025
Using runtime schema validation (like Zod) to ensure we have all the required ENV variables setup... Otherwise, get an explicit error about what's missing
Read more www.jacobparis.com/content/type...
#JSHeroes2025
Absolutely thrilled! See you all in less than 2 months 🤘
🌟 Speaker Spotlight #JSHeroes 2025:
We're very excited to welcome back Andrei Pfeiffer! 🎉
One of our recurring speakers over the years, Andrei is a close friend of the JSHeroes community and part of the ambassadors group since we started doing this. 👨💻
#TechConference
We're very excited to welcome back Andrei Pfeiffer! 🎉
One of our recurring speakers over the years, Andrei is a close friend of the JSHeroes community and part of the ambassadors group since we started doing this. 👨💻
#TechConference
March 28, 2025 at 6:16 PM
Absolutely thrilled! See you all in less than 2 months 🤘
Reposted by Andrei Pfeiffer
📢 Day 1 at JSHeroes 2025 will be all about architecture, software practices, and project showcases. Our speakers will dive deep into various patterns for working with technical debt, refactoring, and code migration. 💻
🗓️ Full agenda here: https://jsheroes.io/#agenda
#JSHeroes #TechEvent
🗓️ Full agenda here: https://jsheroes.io/#agenda
#JSHeroes #TechEvent
February 27, 2025 at 10:46 AM
📢 Day 1 at JSHeroes 2025 will be all about architecture, software practices, and project showcases. Our speakers will dive deep into various patterns for working with technical debt, refactoring, and code migration. 💻
🗓️ Full agenda here: https://jsheroes.io/#agenda
#JSHeroes #TechEvent
🗓️ Full agenda here: https://jsheroes.io/#agenda
#JSHeroes #TechEvent
Reposted by Andrei Pfeiffer
📢 Speaker Spotlight #JSHeroes 2025:
We welcome Shai Reznik to our 2025 lineup! 🎉 He is the team lead for the Qwik framework and the founder of HiRez.io, where he makes web development efficient and fun through online courses and consulting. 👨💻
#SpeakerSpotlight #TechConference #TechInnovation
We welcome Shai Reznik to our 2025 lineup! 🎉 He is the team lead for the Qwik framework and the founder of HiRez.io, where he makes web development efficient and fun through online courses and consulting. 👨💻
#SpeakerSpotlight #TechConference #TechInnovation
February 11, 2025 at 1:18 PM
📢 Speaker Spotlight #JSHeroes 2025:
We welcome Shai Reznik to our 2025 lineup! 🎉 He is the team lead for the Qwik framework and the founder of HiRez.io, where he makes web development efficient and fun through online courses and consulting. 👨💻
#SpeakerSpotlight #TechConference #TechInnovation
We welcome Shai Reznik to our 2025 lineup! 🎉 He is the team lead for the Qwik framework and the founder of HiRez.io, where he makes web development efficient and fun through online courses and consulting. 👨💻
#SpeakerSpotlight #TechConference #TechInnovation
Thank you so much (once again) for this opportunity ☺️ can't wait to meet you all, old friends and new ones as well 🤗
📢 We’re thrilled to announce the selected speakers from this year’s call for papers!
🔎 Check out the full lineup here: https://jsheroes.io/#speakers
And make sure you join us in Cluj this May 💙
#JSHeroes #TechConference #TechInnovation #TechInsights #WebDev #JavaScriptTrends
🔎 Check out the full lineup here: https://jsheroes.io/#speakers
And make sure you join us in Cluj this May 💙
#JSHeroes #TechConference #TechInnovation #TechInsights #WebDev #JavaScriptTrends
February 7, 2025 at 11:30 AM
Thank you so much (once again) for this opportunity ☺️ can't wait to meet you all, old friends and new ones as well 🤗
Reposted by Andrei Pfeiffer
⏳ It's not too late to be an early bird...
But hurry, we only have 40 tickets left at this incredible price! ⚡
🎟️ Grab your ticket now and join us for our all things JavaScript Conference this May in Cluj-Napoca. 🎟️
But hurry, we only have 40 tickets left at this incredible price! ⚡
🎟️ Grab your ticket now and join us for our all things JavaScript Conference this May in Cluj-Napoca. 🎟️
January 21, 2025 at 1:26 PM
⏳ It's not too late to be an early bird...
But hurry, we only have 40 tickets left at this incredible price! ⚡
🎟️ Grab your ticket now and join us for our all things JavaScript Conference this May in Cluj-Napoca. 🎟️
But hurry, we only have 40 tickets left at this incredible price! ⚡
🎟️ Grab your ticket now and join us for our all things JavaScript Conference this May in Cluj-Napoca. 🎟️
Reposted by Andrei Pfeiffer
Happy to see early bird tickets selling out fast. It gives us confidence that even in not-so-great times, events and communities still matter to people ❤️
⏳ It's not too late to be an early bird...
But hurry, we only have 40 tickets left at this incredible price! ⚡
🎟️ Grab your ticket now and join us for our all things JavaScript Conference this May in Cluj-Napoca. 🎟️
But hurry, we only have 40 tickets left at this incredible price! ⚡
🎟️ Grab your ticket now and join us for our all things JavaScript Conference this May in Cluj-Napoca. 🎟️
January 22, 2025 at 7:53 AM
Happy to see early bird tickets selling out fast. It gives us confidence that even in not-so-great times, events and communities still matter to people ❤️
Reposted by Andrei Pfeiffer
🎟️ Grab your JSHeroes tickets 🎟️
Link: jsheroes.io
The limited batch of Early Bird tickets at 170€ are already selling fast! This is the best deal you can get this season for a 2-day conference, with top speakers and our famous community vibes!
See you in May!
Link: jsheroes.io
The limited batch of Early Bird tickets at 170€ are already selling fast! This is the best deal you can get this season for a 2-day conference, with top speakers and our famous community vibes!
See you in May!
January 8, 2025 at 1:31 PM
🎟️ Grab your JSHeroes tickets 🎟️
Link: jsheroes.io
The limited batch of Early Bird tickets at 170€ are already selling fast! This is the best deal you can get this season for a 2-day conference, with top speakers and our famous community vibes!
See you in May!
Link: jsheroes.io
The limited batch of Early Bird tickets at 170€ are already selling fast! This is the best deal you can get this season for a 2-day conference, with top speakers and our famous community vibes!
See you in May!
Reposted by Andrei Pfeiffer
⏰ LAST CALL ⏰
JSHeroes 2025 CFP closes with the turn of the year!
Submit your proposals for the 7th edition of #JSHeroes
jsheroes.io/speak
JSHeroes 2025 CFP closes with the turn of the year!
Submit your proposals for the 7th edition of #JSHeroes
jsheroes.io/speak
December 23, 2024 at 3:03 PM
⏰ LAST CALL ⏰
JSHeroes 2025 CFP closes with the turn of the year!
Submit your proposals for the 7th edition of #JSHeroes
jsheroes.io/speak
JSHeroes 2025 CFP closes with the turn of the year!
Submit your proposals for the 7th edition of #JSHeroes
jsheroes.io/speak
Reposted by Andrei Pfeiffer
I rebuilt my website as a Windows 95 experience.
Try the Disk Defragmenter!
#Wes95 #BuildInPublic
https://wes.dev/
Try the Disk Defragmenter!
#Wes95 #BuildInPublic
https://wes.dev/
Wes Souza
I’m a Staff Software Engineer working at Unqork in New York. Read more on my website.
wes.dev
December 18, 2024 at 2:14 PM
I rebuilt my website as a Windows 95 experience.
Try the Disk Defragmenter!
#Wes95 #BuildInPublic
https://wes.dev/
Try the Disk Defragmenter!
#Wes95 #BuildInPublic
https://wes.dev/
Reposted by Andrei Pfeiffer
👋 Who is doing full on development with @bunjavascript ?
I'm looking for someone who has committed to adopting Bun for their JavaScript backend to read my Bun Security Essentials book/course and write a foreword
A general opinion / generic review is also ok
Hit me up on DMs
I'm looking for someone who has committed to adopting Bun for their JavaScript backend to read my Bun Security Essentials book/course and write a foreword
A general opinion / generic review is also ok
Hit me up on DMs
December 3, 2024 at 7:24 PM
👋 Who is doing full on development with @bunjavascript ?
I'm looking for someone who has committed to adopting Bun for their JavaScript backend to read my Bun Security Essentials book/course and write a foreword
A general opinion / generic review is also ok
Hit me up on DMs
I'm looking for someone who has committed to adopting Bun for their JavaScript backend to read my Bun Security Essentials book/course and write a foreword
A general opinion / generic review is also ok
Hit me up on DMs
Reposted by Andrei Pfeiffer
Social media has ruined web dev the EXACT same way that it ruined politics.
If there were elections in tech, it would be down to a few very popular but completely unqualified candidates who would each have their followers believing they were the "best", and then we'd elect a moron.
If there were elections in tech, it would be down to a few very popular but completely unqualified candidates who would each have their followers believing they were the "best", and then we'd elect a moron.
December 3, 2024 at 6:56 PM
Social media has ruined web dev the EXACT same way that it ruined politics.
If there were elections in tech, it would be down to a few very popular but completely unqualified candidates who would each have their followers believing they were the "best", and then we'd elect a moron.
If there were elections in tech, it would be down to a few very popular but completely unqualified candidates who would each have their followers believing they were the "best", and then we'd elect a moron.
Reposted by Andrei Pfeiffer
Web performance advent calendar calendar is upon us and I need contributions. What did you learn this year? Research, tools, case studies, wishes, aspirations, rants - all welcome! calendar.perfplanet.com/contribute/
Contribute
Passionate about a topic? Working on a new tool? Have a technique you want to teach? Research you've done? Tell the web performance community!
Send your articles to ssttoo@ymail.com. Please include:
...
calendar.perfplanet.com
November 22, 2024 at 4:10 PM
Web performance advent calendar calendar is upon us and I need contributions. What did you learn this year? Research, tools, case studies, wishes, aspirations, rants - all welcome! calendar.perfplanet.com/contribute/
Reposted by Andrei Pfeiffer
We have hired lawyers and we have a draft of the trademark cancellation petition ready
(for those who don't know about this, see javascript.tm)
(for those who don't know about this, see javascript.tm)
elmo from sesame street is standing in front of a wall of fire
Alt: elmo from sesame street is standing in front of a wall of fire
media.tenor.com
November 13, 2024 at 6:00 PM
We have hired lawyers and we have a draft of the trademark cancellation petition ready
(for those who don't know about this, see javascript.tm)
(for those who don't know about this, see javascript.tm)