jshchnz

POSTS

• Fuck Up My Site (Halloween Edition)

  by jshchnz on 10/31/2025, 2:38 PM with 6 comments

• TrustMRR – Database of verified startup revenues

  by jshchnz on 10/30/2025, 9:35 PM with 0 comments

• Just Talk to It – The No-Bs Way of Agentic Engineering

  by jshchnz on 10/14/2025, 7:03 PM with 1 comments

• Show HN: Promptlet – Mac app to help you stop typing "ultrathink" over and over

  by jshchnz on 10/12/2025, 8:59 PM with 0 comments

• Effective context engineering for AI agents

  by jshchnz on 9/30/2025, 7:12 PM with 0 comments

• A two-axis model for understanding LLM strengths and weaknesses

  by jshchnz on 9/25/2025, 7:46 PM with 0 comments

• Building real time analytics for Stripe

  by jshchnz on 9/25/2025, 6:46 PM with 0 comments

• Shipping a Tool to Help Agents Fix Slow Code

  by jshchnz on 9/22/2025, 8:40 PM with 0 comments

• Building Gremlins: AI-powered fuzzing agents to find bugs

  by jshchnz on 9/22/2025, 4:41 PM with 0 comments

• by jshchnz on 9/18/2025, 8:13 PM with comments

• Uniprof: Universal CPU Profiling

  by jshchnz on 9/11/2025, 12:13 AM with 0 comments

• Claude Code Anonymous

  by jshchnz on 9/9/2025, 4:19 PM with 0 comments

• OpenAI Acquires Statsig for $1.1B

  by jshchnz on 9/2/2025, 6:43 PM with 1 comments

• Y Combinator says Apple's App Store has hindered startup growth

  by jshchnz on 8/22/2025, 6:47 PM with 0 comments

• The Future of Software Is Small

  by jshchnz on 8/22/2025, 5:55 PM with 3 comments

• Just One More Prompt

  by jshchnz on 8/19/2025, 8:36 PM with 0 comments

• Doom as a Tool for System Administration (1999)

  by jshchnz on 8/15/2025, 5:04 PM with 0 comments

• The Future of Software Is Small

  by jshchnz on 8/6/2025, 3:11 PM with 0 comments

• Claude Fans Threw a Funeral for Anthropic's Retired AI Model

  by jshchnz on 8/5/2025, 8:03 PM with 0 comments

• Poltergeist: File watcher with auto-rebuild for any language or build system

  by jshchnz on 8/5/2025, 4:09 PM with 8 comments

• by jshchnz on 8/5/2025, 3:27 PM with comments

• RateMyPrompt: Share, rate & optimize AI prompts

  by jshchnz on 7/31/2025, 8:18 PM with 1 comments

• by jshchnz on 7/25/2025, 4:24 PM with comments

• by jshchnz on 7/22/2025, 11:02 PM with comments

• Show HN: RateMyPrompt – share and rate prompts with auto AI evals

  by jshchnz on 7/18/2025, 7:35 PM with 5 comments

• Ask HN: How did Soham Parekh get so many jobs?

  by jshchnz on 7/2/2025, 8:28 PM with 419 comments

• Show HN: iOS app to talk to historical/fictional/contemporary figures with AI

  by jshchnz on 6/25/2025, 6:14 PM with 0 comments

• Open source tool to speed up iOS app launch

  by jshchnz on 6/18/2025, 4:25 PM with 1 comments

• Sentry Acquires Emerge Tools (YC W21)

  by jshchnz on 5/6/2025, 8:54 PM with 0 comments

• by jshchnz on 3/24/2025, 8:33 PM with comments

• We used LLMs to help us find the perfect piece of land for our home

  by jshchnz on 3/20/2025, 7:14 PM with 0 comments

• How Meta thinks about Threads' iOS app performance

  by jshchnz on 12/19/2024, 7:19 PM with 0 comments

• Calling Hidden Swift Functions

  by jshchnz on 11/26/2024, 6:49 PM with 0 comments

• Command AI Bought by Amplitude

  by jshchnz on 10/15/2024, 3:57 PM with 28 comments

• Emerge Tools (YC W21) is hiring a senior front end engineer

  by jshchnz on 10/2/2024, 1:01 AM with comments

• 25% of classes in MKBHD's new Android app are related to ads

  by jshchnz on 9/24/2024, 8:22 PM with 0 comments

• Emerge Tools (YC W21) is hiring a senior front end engineer

  by jshchnz on 9/18/2024, 1:00 AM with comments

• Encourage companies to join the Open Source Pledge

  by jshchnz on 9/6/2024, 6:53 PM with 0 comments

• Show HN: Open-source Hacker News for Android client

  by jshchnz on 9/4/2024, 7:32 PM with 0 comments

• Emerge Tools (YC W21) is hiring a senior front end engineer

  by jshchnz on 9/4/2024, 1:00 AM with comments

• Why is the Oral-B iOS app almost 300 MB? And why is Colgate's app even bigger..?

  by jshchnz on 8/27/2024, 6:29 PM with 237 comments

• Emerge Tools (YC W21) is hiring a senior front end engineer

  by jshchnz on 8/20/2024, 9:00 PM with comments

• Remember Apollo? How much of the app is dead code now?

  by jshchnz on 8/16/2024, 8:01 PM with 0 comments

• Emerge Tools (YC W21) Is Hiring a Product Engineer (iOS, Full-Stack)

  by jshchnz on 8/6/2024, 9:00 PM with comments

• Emerge Tools (YC W21) Is Hiring a Product Engineer (iOS, Full-Stack)

  by jshchnz on 7/23/2024, 5:00 PM with comments

• Emerge Tools (YC W21) Is Hiring a Product Engineer (iOS, Full-Stack)

  by jshchnz on 7/5/2024, 9:00 PM with comments

• Emerge Tools (YC W21) is hiring a senior front end engineer

  by jshchnz on 6/21/2024, 9:00 PM with comments

• Turn the MacBook notch into a drop zone

  by jshchnz on 6/4/2024, 11:10 PM with 0 comments

• Emerge Tools (YC W21) is hiring senior engineers to automate dead code deletion

  by jshchnz on 5/19/2024, 7:01 AM with comments

• Emerge (YC W21) is hiring senior engineers to automate dead code deletion

  by jshchnz on 5/5/2024, 7:00 AM with comments

• Reducing the Size of Cash App for iOS

  by jshchnz on 5/3/2024, 5:21 PM with 1 comments

• An analysis of the Rabbit R1 APK

  by jshchnz on 5/2/2024, 10:58 PM with 111 comments

• Show HN: ReaperAI – Automatically delete dead code from your app

  by jshchnz on 4/25/2024, 4:25 PM with 2 comments

• Emerge (YC W21) is hiring senior engineers to automate dead code deletion

  by jshchnz on 4/20/2024, 9:00 PM with comments

• Do Best Practices Matter?

  by jshchnz on 4/17/2024, 10:51 PM with 35 comments

• YC's Winter 2024 Demo Day confirms that we are indeed in an AI bubble

  by jshchnz on 4/3/2024, 8:35 PM with 65 comments

• Emerge (YC W21) is hiring senior engineers to automate dead code deletion

  by jshchnz on 4/2/2024, 12:00 PM with comments

• Why is the LinkedIn app almost half a gig?

  by jshchnz on 3/25/2024, 8:01 PM with 197 comments

• Can Reddit Survive Its Own IPO?

  by jshchnz on 3/14/2024, 6:27 PM with 0 comments

• Emerge (YC W21) is hiring a Growth Engineer (remote)

  by jshchnz on 3/9/2024, 9:02 PM with comments

• Emerge (YC W21) is hiring a growth engineer (remote)

  by jshchnz on 2/24/2024, 9:01 PM with comments

• Emerge (YC W21) is hiring a growth engineer (small team, fully remote)

  by jshchnz on 2/10/2024, 9:00 PM with comments

• Emerge (YC W21) is hiring an Android expert to help build the future of mobile

  by jshchnz on 1/27/2024, 5:02 PM with comments

• We bought our entire team Day 1 Vision Pros

  by jshchnz on 1/19/2024, 6:50 PM with 0 comments

• Emerge (YC W21) is hiring an Android expert to help build the future of mobile

  by jshchnz on 1/13/2024, 5:01 PM with comments

• 2023 iOS App Architecture "Wrapped" for Acorns

  by jshchnz on 1/3/2024, 11:18 PM with 0 comments

• Emerge (YC W21) is hiring a Senior Android Engineer (remote, small team)

  by jshchnz on 12/30/2023, 12:03 PM with comments

• Emerge (YC W21) is hiring a senior front end engineer (remote, small team)

  by jshchnz on 12/16/2023, 12:02 PM with comments

• Emerge (YC W21) is hiring a Senior Android Engineer (remote, small team)

  by jshchnz on 12/2/2023, 12:01 PM with comments

• Pow, the best SwiftUI animation library, is now free and open source

  by jshchnz on 11/30/2023, 3:06 PM with 0 comments

• Emerge (YC W21) is hiring a Senior Front end Engineer (remote, small team)

  by jshchnz on 11/18/2023, 12:01 PM with comments

• Emerge (YC W21) is hiring a Senior Android Engineer (remote, small team)

  by jshchnz on 11/4/2023, 12:01 PM with comments

• Turning a boring file move into a privilege escalation on a Mac

  by jshchnz on 10/31/2023, 9:37 AM with 0 comments

• Automating Dead Code Cleanup

  by jshchnz on 10/30/2023, 11:46 PM with 0 comments

• Emerge (YC W21) is hiring a senior front end engineer (remote, small team)

  by jshchnz on 10/20/2023, 9:00 PM with comments

• Switching Build Systems, Seamlessly

  by jshchnz on 10/17/2023, 7:26 PM with 0 comments

• macOS “DirtyNIB” Vulnerability

  by jshchnz on 10/6/2023, 5:52 AM with 0 comments

• Emerge (YC W21) is hiring a Senior Android Engineer (remote, small team)

  by jshchnz on 10/4/2023, 12:00 PM with comments

• Show HN: Prevent mobile UI regressions, no test writing necessary

  by jshchnz on 10/3/2023, 9:51 PM with 0 comments

• by jshchnz on 10/3/2023, 9:48 PM with comments

• Emerge (YC W21) is hiring a lead front end engineer (remote, small team)

  by jshchnz on 9/19/2023, 9:02 PM with comments

• The inside story of Threads

  by jshchnz on 9/14/2023, 3:17 PM with 97 comments

• Symbolicating SwiftUI for the first time outside of Apple

  by jshchnz on 9/7/2023, 4:49 PM with 0 comments

• Buzzy AI startup for generating 3D models used cheap human labor

  by jshchnz on 9/6/2023, 2:12 PM with 44 comments

• Emerge (YC W21) is hiring a lead front end engineer (remote, small team)

  by jshchnz on 9/5/2023, 9:01 PM with comments

• The Perils of Migrating a Large-Scale Service at Uber

  by jshchnz on 8/24/2023, 8:28 PM with 0 comments

• How did Chandrayaan 2 fail? A software glitch

  by jshchnz on 8/24/2023, 3:38 AM with 0 comments

• Emerge (YC W21) is hiring a lead front end engineer (remote, small team)

  by jshchnz on 8/22/2023, 5:00 PM with comments

• Finding Dead Code in iOS Apps

  by jshchnz on 8/10/2023, 7:02 PM with 0 comments

• My new favorite bug fix

  by jshchnz on 8/9/2023, 3:46 PM with 0 comments

• Emerge Tools (YC W21) is hiring an engineer to lead front end development

  by jshchnz on 8/7/2023, 9:01 PM with comments

• Emerge Tools (YC W21) is hiring a senior front end engineer

  by jshchnz on 7/24/2023, 5:01 PM with comments

• Candy Crush Saga Deep Dive

  by jshchnz on 7/18/2023, 5:01 PM with 0 comments

• Keeping Up with Android App Size Growth

  by jshchnz on 6/28/2023, 5:20 PM with 1 comments

• Building a Custom Mach-O Memory Loader for macOS

  by jshchnz on 6/23/2023, 2:48 PM with 1 comments

• Elon complaining about Twitter's app size

  by jshchnz on 5/28/2023, 3:46 AM with 2 comments

• A breakdown of HBO Max's new apps

  by jshchnz on 5/24/2023, 4:40 PM with 0 comments

• Emerge Tools is building the future of mobile tooling, come join us

  by jshchnz on 5/21/2023, 12:01 PM with comments

• What does the ChatGPT iOS app look like under the hood?

  by jshchnz on 5/18/2023, 8:14 PM with 0 comments

• What happens to an app's performance when it goes React native to native

  by jshchnz on 5/17/2023, 5:34 PM with 0 comments

• A fast Rust-based web bundler

  by jshchnz on 3/10/2023, 7:55 PM with 0 comments

• What are Split APKs and how they make apps smaller

  by jshchnz on 2/23/2023, 8:27 PM with 0 comments

• Emerge (YC W21) is hiring engineers to build the future of mobile development

  by jshchnz on 2/5/2023, 5:00 PM with comments

• by jshchnz on 1/31/2023, 10:14 PM with comments

• Emerge (YC W21) is hiring engineers to build the future of mobile development

  by jshchnz on 1/19/2023, 9:00 PM with comments

• by jshchnz on 1/18/2023, 8:00 PM with comments

• by jshchnz on 1/13/2023, 2:31 AM with comments

• Emerge (YC W21) is hiring engineers to build the future of mobile development

  by jshchnz on 1/4/2023, 9:00 PM with comments

• by jshchnz on 12/18/2022, 11:30 PM with comments

• by jshchnz on 12/18/2022, 11:29 PM with comments

• Emerge (YC W21) is hiring engineers to build the future of mobile development

  by jshchnz on 12/16/2022, 5:00 PM with comments

• Static vs. Dynamic Frameworks on iOS – A Discussion with ChatGPT

  by jshchnz on 12/14/2022, 5:36 PM with 0 comments

• Automated Baseline Profile Generation

  by jshchnz on 12/6/2022, 8:11 PM with 0 comments

• Emerge Tools (YC W21) Is Hiring a Rockstar Senior Mobile Engineer

  by jshchnz on 12/2/2022, 12:00 PM with comments

• Emerge Tools (YC W21) is hiring to build the future of mobile development

  by jshchnz on 11/18/2022, 12:00 PM with comments

• How 5 iOS apps could improve their startup time by ~28%

  by jshchnz on 9/14/2022, 3:07 PM with 0 comments

• Emerge Tools is building the future of mobile development, come join us

  by jshchnz on 6/19/2022, 5:02 PM with comments

• Symbolicating system addresses in unsymbolicated iOS crash reports

  by jshchnz on 6/6/2022, 3:44 PM with 2 comments

• Emerge Tools (YC W21) is hiring a senior Android engineer

  by jshchnz on 6/5/2022, 5:01 PM with comments

• Code Injection with Dyld Interposing

  by jshchnz on 5/24/2022, 5:42 PM with 0 comments

• Emerge Tools is building the future of mobile performance tooling, come join us

  by jshchnz on 5/6/2022, 5:00 PM with comments

• Emerge Tools is building the future of mobile performance tooling, come join us

  by jshchnz on 4/22/2022, 12:00 PM with comments

• Emerge Tools (YC W21) is looking for Android performance experts

  by jshchnz on 3/30/2022, 5:00 PM with comments

• Emerge tools (YC W21) is hiring a senior Android engineer

  by jshchnz on 3/15/2022, 5:01 PM with comments

• Emerge Tools (YC W21) is hiring a senior Android engineer

  by jshchnz on 3/1/2022, 5:00 PM with comments

• Optimizing app startup time with order files

  by jshchnz on 1/31/2022, 5:28 PM with 0 comments

• The Cost of a Byte: do mobile app downloads contribute to climate change?

  by jshchnz on 1/12/2022, 4:40 PM with 0 comments

• Emerge Tools (YC W21) Is Hiring a Senior Android Engineer – Remote

  by jshchnz on 12/7/2021, 9:00 PM with comments

• Emerge Tools (YC W21) is hiring an Android engineer – remote with company trips

  by jshchnz on 11/26/2021, 5:00 PM with comments

• Emerge Tools (YC W21) is hiring to build the future of mobile performance

  by jshchnz on 11/10/2021, 5:00 PM with comments

• Emerge Tools (YC W21) Is Hiring a Senior Software Engineer (Remote)

  by jshchnz on 10/24/2021, 5:00 PM with comments

• Emerge Tools (YC W21) Is Hiring

  by jshchnz on 10/6/2021, 9:00 PM with comments

• How iOS 15 makes apps launch faster

  by jshchnz on 7/5/2021, 7:42 PM with 59 comments

• How iOS 15 makes apps launch faster

  by jshchnz on 6/23/2021, 8:26 PM with 0 comments

• Activision bullying/suing indie dev over naming rights Activision shouldn't own

  by jshchnz on 4/17/2021, 10:50 PM with comments

• Curious what's in the Clubhouse app?

  by jshchnz on 2/21/2021, 3:31 AM with 0 comments

• How Top iOS Apps Could Save You 0.5GB of Storage

  by jshchnz on 1/15/2021, 4:46 PM with 0 comments

• Show HN: Textla (Text your Tesla)

  by jshchnz on 8/21/2020, 7:47 PM with 3 comments

• by jshchnz on 8/21/2020, 7:46 PM with comments

• Show HN: Screenie 2 – Mac app to search the text in your screenshots

  by jshchnz on 1/16/2020, 4:27 PM with 0 comments

• Show HN: Free Image Menubar Manager on MAS

  by jshchnz on 12/15/2015, 11:07 PM with 0 comments

• Show HN: Unofficial Tinder Client for Apple TV

  by jshchnz on 12/9/2015, 5:51 PM with 2 comments

• by jshchnz on 12/7/2015, 6:21 PM with comments