Skip to content
View john-rocky's full-sized avatar
459 followers · 1 following

Achievements

Achievement: Pair Extraordinairex3Achievement: Starstruckx3Achievement: QuickdrawAchievement: YOLOAchievement: Pull Sharkx3Achievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair Extraordinairex3Achievement: Starstruckx3Achievement: QuickdrawAchievement: YOLOAchievement: Pull Sharkx3Achievement: Arctic Code Vault Contributor

Block or report john-rocky

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
john-rocky/README.md

Daisuke Majima — on-device AI, iOS & Android

I take ML / CV / VLM models and make them run on phones, tablets and AR headsets — fast, small, and fully offline.

CoreML-Models ⭐1.8k · LiteRT-Models · VLMKit · ex-Ultralytics (YOLO on mobile) · 10 apps on the App Store · Osaka, Japan (JST)

120+ converted models on Hugging Face · member of litert-community (Google LiteRT) · DeviceMark — on-device LLM leaderboard for iPhone

What people hire me for
Ship a model on-device PyTorch / ONNX → Core ML or LiteRT, production-ready, not a demo
Make it fast Latency and memory — quantization, palettization, ANE / GPU / NPU tuning
Real-time camera & video Detection, tracking, segmentation at frame rate
On-device VLM / LLM Structured extraction and generation, fully offline
Train or fine-tune Building the model for the target device, not only deploying someone else's weights

Small, well-scoped pieces are welcome as well as longer engagements.

Get in touch

📧 rockyshikoku@gmail.com — I reply within a day 🌐 john-rocky.github.io — shipped apps, past work, details

Freelance through Pebble Inc. (Osaka, JST) — currently taking projects. Remote; occasional travel is fine.

Popular repositories Loading

  1. CoreML-Models CoreML-Models Public

    Converted CoreML Model Zoo.

    Swift 1.8k 170

  2. coreai-model-zoo coreai-model-zoo Public

    Community model zoo for Apple Core AI (iOS/macOS 27): 57 models — LLM, VLM, OCR, ASR, TTS, image/video/music gen, forecasting — each gated against its source model and shipped with the recipe that …

    Python 377 24

  3. RealityKit-Sampler RealityKit-Sampler Public

    a sample collection of basic functions of Apple's AR framework for iOS.

    Swift 182 19

  4. CoreML-LLM CoreML-LLM Public

    Run LLMs on Apple devices with CoreML, optimized for Apple Neural Engine + GPU

    Python 177 21

  5. SemanticImage SemanticImage Public

    A collection of easy-to-use image/video filter.

    Swift 165 27

  6. lama-cleaner-iOS lama-cleaner-iOS Public

    iPhone/iPad version of lama cleaner

    Swift 85 24