Real case study of Android app optimization: how to reduce cold start time from 17 to 1.7 seconds, improving retention from 82% to 98.5%. Concrete solutions: migration to Splash Screen API, background task system, reactive data loading, and backend optimization.
OpenClaw (formerly ClawdBot) by Peter Steinberger is a personal AI assistant with file-system access, background agents, and remote control. This post covers its origins, hype, and my hands-on take.
I migrated 150k lines of code to AGP 9.0 and wrote a comprehensive, step-by step guide to migrating large Kotlin Multiplatform projects from AGP 8 to AGP 9, covering all breaking changes including removed build types, BuildConfig issues, NDK restrictions, and the new DSL syntax.
I found my calling as a consultant - the story of how I saved a business millions and created my best product - myself.
Agent skills are a way to progressively disclose context to AI through markdown files, which saves tokens and boosts performance. I explain why you need them, when to use them, how to create them, and debunk the myths.
In December, AI models crossed a threshold after which I became useless as a programmer. Now I push code to prod that Ive never read.
Introducing ksrc - a CLI utility that simplifies searching and viewing Kotlin library source code from 15+ commands down to two for your AI agents.
Starting in 2026, Im going independent for at least six months - will be building my own product full-time and building in public.
Im sharing how the Pulse feature in ChatGPT Pro proactively puts together a daily personalized digest for me - from Crashlytics crash fixes to Kotlin, Compose, and Jetpack updates. I explain why this is one of the most useful AI use cases for me.
Detailed comparison of Codex and Claude Code after three months of using both tools. Breaking down the pros and cons of each, model features, harnesses, pricing, and revealing who I paid $200/month to
Comparison of MVIKotlin, FlowMVI, Orbit MVI, and Ballast based on research across 70 Kotlin architecture libraries and 100+ criteria, with examples, pros, cons, and use cases for each. Includes a public spreadsheet comparing 70 Kotlin MVI and state management libraries.
SharedPreferences in Android are leading to ANRs through a hidden mechanism that Google tried to lie to you about. I completely expose them with proofs.
After a year of work, I reached 0% freezes (App Not Responding or ANRs) in my app. Sharing a complete guide with 12 tips: from removing SharedPreferences and enabling StrictMode to fighting memory leaks.
I rebuilt a legacy game engine from scratch using MVI architecture and Kotlin, 7000+ -> 400 lines, 20s load time -> to 1.75s, crashes from 8% to 0.01%, and 1700% better event processing throughput.
A comprehensive guide to making Android notifications and alarms completely reliable, based on years of real-world experience building an alarm clock app with zero notification failure reports.
In August, I switched to the Piantor Pro split keyboard with 40 keys and the Colemak DH layout. It turns out that traditional QWERTY keyboards are relics of the past, while split keyboards are much more ergonomic, portable, and efficient.
Built a Wear OS companion app in one evening, ran into terrible Java-based Google APIs and half-documented Horologist. Sharing my experience and step-by-step guide on how to avoid the main pitfalls when developing for watches.
I wont make you a reproducer. Stop asking.
A comprehensive guide on dealing with toxic family dynamics through structured conversations, exploring your emotions, and enforcing boundaries - including specific frameworks for creating accountability and knowing when its time to walk away.
An 8-question template for an emotions journal, based on 4 years of experience in Gestalt therapy. Helps fully work through and resolve uncomfortable emotions through sequential entries.
Learn the correct way to load and observe data in Kotlin apps using, and avoid 4 common anti-patterns that cause hidden bugs, resource leaks, and production crashes.
Representing events as state creates more problems than using event streams like Channel, and I explain why popular solutions often backfire in real-world applications.
Full guide on how to manage, update and represent state and avoid races in Kotlin MVI/MVVM apps using coroutines.
Anthropic published research showing that large language models are capable of detecting manipulations of their thinking process and recognizing their own intentions, which may indicate elementary forms of self-awareness.
Deleted my app for a week to test its value. Got sloppy, doubted the products uniqueness, but ultimately realized the main thing: Respawn isnt a habit tracker, but an aggregator of life values that removes the burden of decision-making from me.
Major blog update: automatic publishing to LinkedIn and dev.to, improved formatting, mobile version, SEO optimization with rich preview and hashtags, plans for Reddit and Twitter integration.
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.
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.
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.
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.
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.
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.
Moved from Linux to MacOS, listing everything thats missing and what I regret.