Nikita Vaizin

Hi, I'm Nikita Vaizin aka "Nek.12"

I'm a Kotlin developer, entrepreneur, AI bro, and obsessed with self-improvement. On this site I share things I learned, built, and enjoyed.

All posts
PersonalPsychology

My Hobby Is Self-Development. Heres What It Actually Means

When I say my hobby is self-development, people often dont understand what I mean. Heres my definition and examples of how it works in real life....

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PersonalPsychology

Review of Effortless by Greg McKeown: Key Insights and Why the Book Gets 3/5

Read Effortless by McKeown - the book is a hodgepodge of productivity advice, but contains several valuable ideas about cumulative progress and Archimedean levers. Extracted about 30% new and non-obvious content, so rating is 3/5....

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PersonalPsychology

10 Self-Improvement Challenges from David Goggins Cant Hurt Me - Complete Breakdown

A complete breakdown of the 10 transformative self-improvement challenges from David Goggins book Cant Hurt Me, designed to push you past your limits and eliminate excuses....

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AIPersonal

I Vibecoded a Blog in 8 Hours Without Writing a Single Line of Code

I built a complete blogging platform with automated publishing across multiple languages and channels in 8 hours, using Claude without writing a single line of code myself....

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AIDevelopment

Claude 4.5 Sonnet Complete Review: Why Its Time to Forget About Opus

Claude 4.5 Sonnet is a breakthrough update that completely replaces Opus for most tasks thanks to better instruction following, parallel tool calls, and impressive speed. You can now work with lower limits and greater productivity....

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Personal

I switched from Linux to MacBook Pro M1 2021. An honest review of all the pros after 2 weeks of use

A detailed review of the MacBook Pro 2021 M1 Pro after 2 weeks of use - build quality, display, performance, battery, and macOS capabilities that made me switch from Linux....

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Personal

I switched to macOS and I'm shocked: 12 major problems Apple has been ignoring for years

Moved from Linux to MacOS, listing everything that's missing and what I regret....

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