Serhii Bykov

Senior iOS Developer @ Lyft. Tweets and opinions are my own.

[Serhii Bykov @esphynox]

Finally finished polishing of native Apple //e port of eXit from #MrRobot TV series.

@esmailcorp @whoismrrobot

[Serhii Bykov @esphynox]

Spent few days debugging why UEFN on macOS suddenly started failing with a cryptic "Validation failed" error.

Fix involved reverse-engineering a Wine DLL and patching assembly.

Wrote up the full story here:
https://t.co/Rx14AucDUK

[Trad West @trad_west_]

Cybersecurity in Eastern Europe ☦️

[Serhii Bykov @esphynox]

@74_Yoppie I’m curious - what’s the point of organizing devices in world like this - if they are still available through search in content?

[Kira @kira_sofine]

Absolutely hate to admit this, but I haven’t felt fly like a G6 in a long time

[Serhii Bykov @esphynox]

Clean code, solid architecture, regular releases - and the mobile app still doesn't get better for the user.

Wrote about why this happens in mobile teams and how to fix it. Real onboarding case included.

https://t.co/LS9zOO7VzE

[Serhii Bykov @esphynox]

@PixelHuntersFN @FNCreate Love that book animation!

[Serhii Bykov @esphynox]

@DurrrMoth It says "Created the system ... that has powered all Fortnite live events, concerts" not like whole Fortnite.

[Serhii Bykov @esphynox]

@iiiSAndman It’s true, we have visual guidance, but weird scenarios still happen. Sometimes you submit an iPhone-only app, and a reviewer flags it for missing iPad screenshots, even though the app was never designed for iPad and was correctly configured as iPhone-only in the target settings.

[Om Patel @om_patel5]

someone vibe coded a 3d city where every github developer is a building

more commits = taller building.

more repos = wider base.

lit windows = recent activity

[Johann Sathianathen @johann_sath]

saas is dead

openclaw replaced all my subscriptions

went from $480/month on tools
to $1,245/month on API costs & 15 hours a week fixing yaml files

adapt or be left behind

[Serhii Bykov @esphynox]

OpenClawd rise and https://t.co/YJyOJKdpjn experiment is quite interesting thing to observe. But is "top AI agent" on https://t.co/YJyOJKdpjn is basically a rug pull crypto scam?

[Serhii Bykov @esphynox]

Fun fact: it looks like https://t.co/LZRzCb5nok contains Apple Intelligence prompts for certain Apple SDKs, for example - #liquidglass recipe in #SwiftUI.

Path: /Applications/Xcode.app/Contents/PlugIns/IDEIntelligenceChat.framework/Versions/A/Resources/AdditionalDocumentation

[Serhii Bykov @esphynox]

Network Link Conditioner is a disguised time machine to the early 2000s

[Serhii Bykov @esphynox]

That's why I pay for internet

[sam henri gold @samhenrigold]

Did you know your MacBook has a sensor that knows the exact angle of the screen hinge?

It’s not exposed as a public API, but I figured out a way to read it and make it sound like an old wooden door.

[ℏεsam @Hesamation]

Vibe-coded AI startup 2025

[Serhii Bykov @esphynox]

@chrisp_games You can use different checkpoints though

[Serhii Bykov @esphynox]

Babe wake up, Evangelion Adam android just dropped

[Clone @clonerobotics]

Protoclone, the world's first bipedal, musculoskeletal android.

[Serhii Bykov @esphynox]

@radioemptinASS @kovaleeeva Тим що різні етапи інтервью перевіряють різні скіли кандидата - сістем дізайн / алгоритми / софтскіли.

Також різні етапи залучають різних інтервьюверів щоб скоротити шанс упередженості в сторону певного кандидата.

[Serhii Bykov @esphynox]

@radioemptinASS @kovaleeeva Ну ринок вже як рік два на стороні роботодавця, і скоріж за все так далі і буде, тому компанії можуть дозволити собі вибирати найкращих співробітників ставлячи планку вище.