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nicoespeon.com
Necrolas Scarlo 🧟‍♀️
@nicoespeon.com
900 followers 170 following 770 posts
🧹 I refactor Legacy Code and build tools to help you do the same! ✏️ understandlegacycode.com 🎩 Mr. Meetup Montréal • Software Crafters / React / TypeScript / Elixir 🍁 guild.host/montreal-tech/network
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
Alright, let's make it official…

I am super-proud to tell you that I have finally published the print version of my book: "Legacy Code: First Aid Kit" 🎉 📕 🥲
A proud Nicolas holding a physical copy of his book. The book is 200 pages long. Its cover is mostly red and titled "Legacy Code: First Aid Kit" with some bandage, and a subtitle: "14 techniques to quickly and safely rescue a codebase" The book is open at page 85. The chapter is titled "Decouple Core from Infrastructure". We can see some explanations along code snippets that have syntax coloring and a font size large enough to be comfortable to read. The book is opened at page 35. The current chapter is titled "The Mikado Method & The Parking". On this page we can see there is an image to illustrate the concept being explained. It's readable enough to be comfortable. We can also see a footnote that links to Philippe Bourgau's blog because he was a relevant source for this concept.
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 11d
Burning house girl meme, with the girl asking "Is there a seahorse emoji" and ChatGPT burning in the background, desperately trying to come up with one
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 11d
"Is there a seahorse emoji?"

🍿

chatgpt.com/share/68e939...
ChatGPT is convinced there is a seahorse emoji and starts melting down, trying to write it down. It goes on and on, without ever managing to produce it, with desperate "FINAL FINAL FINAL REAL ANSWER" disclaimers 😄
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Reposted by Necrolas Scarlo 🧟‍♀️
adrienjoly.com
Adrien Joly @adrienjoly.com · 12d
I just shared with my team an example of how NVC (non-violent communication) help me resolve a conflict that made me mad against my CEO, in a previous work experience.
I figured that it may be helpful/interesting to some of you, so here we go:
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Reposted by Necrolas Scarlo 🧟‍♀️
cmorrell.com
Chris Morrell @cmorrell.com · 13d
If you're migrating data from an old system to a new one, and using a new table for the new data, set the auto-increment ID of the new table to be a round number that's higher than the highest ID in the old table. Some day you'll appreciate it.
4 2 20
Reposted by Necrolas Scarlo 🧟‍♀️
selrahcd.bsky.social
Charles Desneuf @selrahcd.bsky.social · 13d
In a Zod schema, try using default instead of optional and see your code become clearer, free of undefined checks.
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 14d
💯

@jhumelsine.bsky.social 🙂
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 14d
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 14d
PSA if you didn't know: Jim has a nice list of great resources to help you deal with legacy code here 👇
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 14d
I've watched Steven Diamante's talk "The Legacy Code Survival Guide: Add Features Without Fear"

Although I'm familiar with the techniques, I've found they are very neatly presented!

The talk is 1h20 long, so I did a breakdown to help you watch it 😉

understandlegacycode.com/blog/legacy-...
The Legacy Code Survival Guide: Add Features Without Fear - Change Messy Software Without Breaking It
Steven Diamante gave a great presentation on Legacy Code at the Seattle Crafter meetup. Let's dive i
understandlegacycode.com
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Reposted by Necrolas Scarlo 🧟‍♀️
montreal-tech.guild.host
Montréal Tech Events @montreal-tech.guild.host · 22d
🥁 Oct 8th at 6PM: React MTL - Oct 2025

Connect with React & React Native geeks! Enjoy delicious food & refreshing drinks. 🍕🥤
Mohamed Hanou shows how Django simplifies life for React devs: fast APIs, auth, & back-office. 🚀

Check it out 👉 https://guild.host/e/o2g3yi
React MTL - Oct 2025
👥 Join us on Discord: discord.gg/kddEWbFhbc Our wonderful host: Triton digital ⭐ \--- Rejoins-nous pour apprendre et échanger avec des développeurs et développeuses React & React Native de Montréal! Comme d'habitude, il y aura de la bonne nourriture et des boissons rafraichissantes! Join us for an amazing fun evening and meet fellow Montrealer React & React Native geeks! As always, expect delicious food and refreshing drinks!
guild.host
1
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · 22d
📢 Dernier appel / Last call

Le CFP pour /dev/mtl ferme ses portes mercredi. Il ne vous reste qu'aujourd'hui et demain pour proposer des sujets 😉

www.papercall.io/dev-mtl-2025
PaperCall.io - /dev/mtl 2025
*English version below* 🇫🇷 Rejoins-nous le 28 Novembre 2025 pour une journée remplie de présentations des communautés tech locales! L'événement aura lieu à Montréal et proposera des présentations te...
www.papercall.io
Reposted by Necrolas Scarlo 🧟‍♀️
emilybache.com
Emily Bache @emilybache.com · Sep 19
The team at the Modern Software Engineering Channel are helping me to publish a new free guide - this time for essential refactorings. There are a lot of fancy tools out there and keyboard shortcuts you could learn - and I find _these_ moves are foundational. www.subscribepage.com/mustlearncor...
Emily Bache’s Must Learn CORE Refactorings
www.subscribepage.com
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 18
Thank you Simon 😃
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
Thank you Lars!
1
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
Thank you Shaun!
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
Il existe aussi une version Française (parce-que). Seulement en e-book, mais elle existe, ici: understandlegacycode.com/premiers-soi...
Legacy Code: Premiers Soins - Change Messy Software Without Breaking It
Secourez votre Legacy Code rapidement et sereinement.
understandlegacycode.com
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
If you are looking for more details, a free chapter, or the e-book version of this, you can check out understandlegacycode.com/first-aid-kit/
Legacy Code: First Aid Kit - Change Messy Software Without Breaking It
Rescue your Legacy codebase quickly and safely.
understandlegacycode.com
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
Wherever you are in the world, you should be able to get one from your Amazon store 🗞️

This one is for all the geeks who:
🔹 are dealing with legacy codebases,
🔹 want practical techniques to tackle them,
🔹 and love having a physical book in their library 😄
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
4 years after self-publishing the e-book, I found how to get a printed version without depending on an editor, nor deal with the worldwide delivery logistics…

Turned out that Amazon can handle it!

After a dozen more hours of work and rework, I'm finally happy with the result 🙂
1 1
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
Alright, let's make it official…

I am super-proud to tell you that I have finally published the print version of my book: "Legacy Code: First Aid Kit" 🎉 📕 🥲
A proud Nicolas holding a physical copy of his book. The book is 200 pages long. Its cover is mostly red and titled "Legacy Code: First Aid Kit" with some bandage, and a subtitle: "14 techniques to quickly and safely rescue a codebase" The book is open at page 85. The chapter is titled "Decouple Core from Infrastructure". We can see some explanations along code snippets that have syntax coloring and a font size large enough to be comfortable to read. The book is opened at page 35. The current chapter is titled "The Mikado Method & The Parking". On this page we can see there is an image to illustrate the concept being explained. It's readable enough to be comfortable. We can also see a footnote that links to Philippe Bourgau's blog because he was a relevant source for this concept.
4 8 24
nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 17
All the best Josh, good luck!
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 16
a man in a suit and tie has the word perfectenschlag written on his face
ALT: a man in a suit and tie has the word perfectenschlag written on his face
media.tenor.com
Reposted by Necrolas Scarlo 🧟‍♀️
43081j.com
James @43081j.com · Sep 9
some thoughts about the bloat introduced by edge-case first libraries
The bloat of edge-case first libraries
How building edge-case first led to bloated, overly-granular libraries and what we can do about it
43081j.com
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nicoespeon.com
Necrolas Scarlo 🧟‍♀️ @nicoespeon.com · Sep 13
React Advanced (@reactadvanced.gitnation.org) is coming to Toronto in 2026! And I'll be speaking there 😉

🎙️ Call for Presentations is still OPEN!

Got an 🔥 idea for a talk or workshop?
Share it: shorturl.at/shnVJ

Learn more about the conference: shorturl.at/aI23h
Log In
Home of React and JavaScript insights directly from framework authors, early adopter engineers and big tech from - talk recordings, hands-on workshops and articles.
shorturl.at
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Reposted by Necrolas Scarlo 🧟‍♀️
reactadvanced.gitnation.org
React Advanced London @reactadvanced.gitnation.org · Sep 12
💚 Call for Volunteers – React Advanced Canada!

Join our amazing crew:
• Support sessions, registration, info desk & more
• Gain skills, make connections & create fun memories

Apply now!
Apply now!
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