Radek Pietruszewski
Person on 4 sites
Programmer; builds Mac and iOS apps, wrote WatermelonDB, and writes about tools, focus and software craft.
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4 facts on wiqqi (opens wiqqi.app)
Who people, organisations and podcasts are, and how they connect, with sources.
Updated 2026-11-01 -
1 channel on ppll (opens ppll.app)
Where public figures publish, and what they are on record saying.
Updated 2023-03-03 -
2 beliefs on korrents (opens korrents.com)
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Squeezing out extra performance can be the difference between a great software product and unusable garbage, especially in an interpreted language. (opens korrents.com)
“Speed is a feature, and when working in an interpreted language, squeezing every last bit of performance can be the difference between a great product and unusable garbage.”
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A flat sequence of early exits is easier for people to follow than deeply nested conditional branches. (opens korrents.com)
“In non-trivial cases, it's easier for our brains to follow a flat path with a few early exits rather than analyze nested branches.”
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Squeezing out extra performance can be the difference between a great software product and unusable garbage, especially in an interpreted language. (opens korrents.com)
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92 recommendations on rcmnd (opens rcmnd.app)
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Factfulness (opens rcmnd.app)
“The world is bad, but better. The vast majority of westerners believe the world is poorer, more violent, deadly, primitive, and awful than it actually is. This book beautifully illustrates our ignorance, updates your…”
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Courage to Be Disliked (opens rcmnd.app)
“This is a very strange book, and I can’t say I liked it very much, but there is some useful philosophy inside (and perhaps a lot if you or someone you know is struggling with low self-esteem).”
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Digital Minimalism (opens rcmnd.app)
“Podcast. Cal Newport’s new book is a great distillation of what I’ve come to believe is the right, sustainable, healthy approach to social media, and technology more broadly. Browse less, make the best of it, and live…”
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Factfulness (opens rcmnd.app)