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Ivan Derlich

@IvanDerlich

Full-stack Software Engineer

 Mendoza, Argentina
ivanderlich.com
Joined November 2019
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Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)Photo by Ivan Derlich (@IvanDerlich)
I built Roldar: a license-free IT stack for small businesses, using self-hosted open-source tools. blog.ivanderlich.com/buildin…
Building Roldar: A License-Free IT Stack for Small Businesses

Building Roldar: A License-Free IT Stack for Small Businesses

AI Engineer. Notes on building real systems: ERP, AI agents, self-hosting and Kubernetes.

blog.ivanderlich.com
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Ivan Derlich retweeted
Karthik (@karthikponna19) profile picture
Karthik
@karthikponna19May 3
CSS can kill you
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Clean Coders (@thecleancoders) profile pictureClean Coders@thecleancodersFeb 10
More tests do not automatically mean safer code. Bad tests can make refactoring impossible: cleancoders.com/blog/2026-01…
Testing Smarter, Not Harder by Nathan Dickinson

Testing Smarter, Not Harder by Nathan Dickinson

# Testing Smarter, Not Harder: More Tests Doesn't Always Mean Safer Code Imagine you're building a...

cleancoders.com
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I asked this to ChatGPT: "Based on our conversations, create an image of how you feel I treat you"
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Stop bringing your 'whole self' to work. Bring your professional self. Leave your personal life for where it belongs—your personal life.
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Ivan Derlich retweeted
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Mona Losh
@LoshMona18 Nov 2025
Replying to @celestaracosmos
@rumilyrics
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Ivan Derlich retweeted
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Mike Cohn@mikewcohn19 Jul 2024
#agilequotes Get a free PDF of the entire Agile quotes collection here: bit.ly/3eVy8HJhttps://www.mo…
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Mike Cohn@mikewcohn26 Jul 2024
#agilequotes Get a free PDF of the entire Agile quotes collection here: mountaingoatsoftware.com/ema…
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Ivan Derlich retweeted
Mike Cohn (@mikewcohn) profile picture
Mike Cohn@mikewcohn18 Oct 2024
#agilequotes Get a free PDF of the entire Agile quotes collection here: bit.ly/3eVy8HJhttps://bit.ly…
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Ivan Derlich retweeted
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Mike Cohn@mikewcohn1 Nov 2024
#agilequotes Get a free PDF of the entire Agile quotes collection here: bit.ly/3eVy8HJhttps://bit.ly…
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Ivan Derlich retweeted
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Mike Cohn@mikewcohn15 Nov 2024
#agilequotes Get a free PDF of the entire Agile quotes collection here: bit.ly/3eVy8HJhttps://bit.ly…
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“Continuous improvement is better than delayed perfection.” — Mark Twain
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“The purpose of knowledge is action, not knowledge.” ― Aristotle
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Lex Fridman
@lexfridman21 Dec 2024
"In the midst of winter, I found there was, within me, an invincible summer. No matter how hard the world pushes against me, within me, there's something stronger – something better, pushing right back." - Albert Camus I return to this quote often, and a lot recently, going through some rough challenges. I love you all ❤️
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If every employer you’ve worked at is “toxic” then I’m afraid the problem is you.
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Envy was once considered to be one of the seven deadly sins before it became one of the most admired virtues under its new name, "social justice."
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Ezekiel
@ezekiel_aleke16 Nov 2024
SQL JOINs are like Set Theory:
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