Guillaume

Guillaume

TwentyTwenty
CTO & side project Maker

About

After 15 years of coding, I am still fascinated by bringing solutions to people around me

Badges

Top 5 Launch
Top 5 Launch
Tastemaker
Tastemaker
Veteran
Veteran
Gone streaking
Gone streaking
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Maker History

  • Twenty
    TwentyThe #1 open-source CRM
    Jun 2025
  • Sales Tools AI
    Sales Tools AIFind AI Tools that increase your sales 💸
    Oct 2024
  • Wallet2Pseudo
    Wallet2PseudoReplace crypto wallet addresses with pseudos
    Dec 2021
  • Peanut Allergy
    Peanut AllergyOffline translator for people allergic to peanuts
    Sep 2017
  • 🎉
    Joined Product HuntSeptember 14th, 2017

Forums

Max Musing•

15d ago

How we decided to pivot after 4 years

After four long years of grinding, building, fundraising, and hiring, we decided to pivot. I wanted to write down my thought process and timeline because I wish I d seen more honest pivot stories when we were stuck. Not just we pivoted and everything was instantly great but the real version where we kept trying to make the original idea work for way too long because we already put so much into it.

I went through YC S20 (the first COVID batch) as a solo founder working on @Basedash. After YC, I did what you re supposed to do. I talked to users. I built product. I did founder-led sales. I hired a great team. It felt like progress because I was constantly busy and the product kept getting better.

Guillaume•

8yr ago

Peanut Allergy - Offline translator for people allergic to peanuts

Peanut Allergy is a deadly simple app to inform food-makers of your peanut allergy while traveling abroad. Type a country, and get the translation of "I am allergic to Peanuts". Done. Main fact: works OFFLINE. I am allergic to peanuts, and I had been looking for such a tool for quite a while so I built it myself. I am very open to suggestions !!!

Guillaume•

4yr ago

Wallet2Pseudo - Replace crypto wallet addresses with pseudos

Chrome extension to replace horrible crypto wallet addresses with pseudo. While browsing websites, we all hate remembering that 0x9590b5fc46a499ad1f6k72d39b5334b1b4987fb3 is... john !

100% privacy respectful (data never leaves your browser)
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