https://sudonull.com/soviet-ic-crystals-topology-analysis
Studying crystals of 18 Soviet microcircuits: structures, markings, manufacturer differences. Useful for developers for reverse engineering. Read details.
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In this project
https://sudonull.com/icmp-tunnel-in-the-linux-kernel-tcp-udp-encapsulation
How to implement an ICMP tunnel in the Linux kernel for TCP/UDP traffic encapsulation. Code analysis, Netfilter hooks and working with sk_buff. Useful for middle/senior developers.
https://sudonull.com/developers-quotes-code-mcu-circuit-design
Collection of aphorisms from embedded development: code principles, firmware, hardware and management. Useful for middle/senior in stand-ups and code reviews. Read and discuss.
From other projects
https://ymaho.com/how-to-get-around-sochi-without-a-car-public-transport
Detailed guide for tourists: how to use buses, minibuses, trains, and Lastochkas in Sochi without a car. Useful tips and life hacks.
https://ymaho.com/ai-in-diagnostics-errors-up-to-80-and-gpt-5-hallucinations
Neural networks make mistakes in 80% of cases in differential diagnosis, and GPT-5 produces hallucinations in 65%. Find out why AI is not yet ready to replace a doctor, and where it is truly useful.
From the web
2 days ago ·
https://www.merriam-webster.com/thesaurus/useful
2 days ago · Synonyms for USEFUL : applicable, practical, applied, applicative, practicable, usable, pragmatic, workable; Antonyms of USEFUL : useless, impractical, impracticable, inapplicable, unusable, theoretical, unworkable, abstract
6 days ago ·
https://www.merriam-webster.com/dictionary/useful
6 days ago · The meaning of USEFUL is capable of being put to use; especially : serviceable for an end or purpose. How to use useful in a sentence.
3 days ago ·
https://en.m.wiktionary.org/wiki/useful
3 days ago · useful (comparative more useful or usefuller, superlative most useful or usefullest) That’s a very useful tool for gardeners. She found the information extremely useful .
Apr 4, 2026 ·
https://www.englishgrammar.org/words-useful/
Apr 4, 2026 · Discover 100 better words to replace “ useful ” in writing and speech—smart, vivid alternatives for resumes, emails, essays, and everyday conversation.
Searches related to useful tips
https://www.vocabulary.com/dictionary/useful
If you can use something, it's useful . Useful things are handy for whatever you're doing.
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