Sumi Block Puzzle
Quiet block puzzle
A calm, offline 9×9 wood block puzzle for iPhone and iPad. Clear rows, columns and 3×3 squares. Free gameplay, no ads, and optional hand-painted themes.
Product 
Coming to the App Store Products
Products
A product matrix of apps, AI tools, browser utilities, quiet games, and honest postmortems. Each product page connects downloads, source code, privacy, support, and build diaries under one domain.
Product Coming to the App Store 
Sumi FreeCell Solitaire
Quiet card game
Offline FreeCell for iPhone and iPad: eight face-up columns and four free cells, tap or drag controls, unlimited undo, hints and automatic saves. Easy-Read Mode enlarges the cards, and twelve interface languages can be selected in Settings.
Product Coming to the App Store 
Sumi Klondike Solitaire
Quiet card game
An offline iPhone and iPad Klondike solitaire with a classic green felt default. Undo, hints, saves, and draw-one or draw-three are always free; the Classic Green default skin is free, and one one-time purchase unlocks all paid skins.
Product Coming to the App Store 
LeanTake
Mac screen recorder
A screen recorder for lessons, tutorials and demos. Record a display, a window or an area with microphone and system audio, pause, annotate with a pen and magnify the area around the cursor. When you stop, you already have a playable video file. No account, nothing leaves your Mac.
Product Coming to the Mac App Store 
DockTouchBar
Touch Bar utility · AI coding case study
A native macOS utility that does one thing: show your Dock apps on the Touch Bar of a MacBook Pro. Tap to switch, double-tap to hide, long-press to quit. No widgets, no network access, 0.0% CPU when idle. Two editions: Standard is just the Dock; Vibe includes everything and also shows live working / done status on the icon of the app your AI coding agent runs in.
下载 DockTouchBar
Mood Button
Local AI mood journal
An iPhone local-AI voice mood journal built with Apple MLX and Qwen3.
Sumi Mahjong
Quiet puzzle game
A quiet iPhone and iPad tile-matching game with hand-tuned ink tiles, offline play, and optional one-time theme unlocks.
DrowseBook
Bedtime read-aloud reader
An iPhone bedtime reading and listening app for EPUB, PDF, TXT, MOBI, AZW3, Apple TTS, ambient sound, and sleep timers.
GlotShot
PostmortemPostmortem: App Store asset automation
A batch App Store preview generator whose basic screenshot workflows are increasingly easy to automate with AI coding tools.
TrekReel
3D trail-story tool
Turn GPX / KML / KMZ routes into cinematic 3D map videos: select a region to download satellite imagery, terrain and roads, then design the camera with slide-style keyframes. Built for hiking, cycling, running and travel recaps.
WitNote
Local Markdown and AI writing workspace
A Markdown workspace for Mac, iPhone, and iPad (Mac version available now; iPhone and iPad coming with 2.0.6). Notes stay in files you choose, with optional on-device AI. No account, no ads, no tracking.
Packpour
PostmortemPostmortem: App Store Connect automation
A project about App Store Connect field automation, locale packs, and side-panel workflows, now kept as a postmortem and operations lesson.
BeRaw
Behance raw-image utility
A focused browser tool for raw-image detection, source-image strategy, ZIP batching, and small-tool privacy lessons.
DOMPrompter
PostmortemPostmortem: AI frontend helper
A tool that once tried to help AI agents locate frontend elements precisely. Newer Codex and browser agents are reducing the need for this middle layer.
AgentLimb
AI browser-control tool
A universal web-control Chrome extension enabling Codex, Claude Code, and domestic AI agents to drive real browser sessions.
Codex Quota Calendar
Codex quota utility
A local macOS menu-bar utility for reading Codex quota usage, daily rhythm, weekly remaining quota, and depletion estimates.
UIXskills
PostmortemPostmortem: AI design protocol
An experiment connecting AI output, JSON, whiteboards, skills, and UI implementation, now kept as a method-product postmortem.
DailyZikr
Dhikr and prayer utility
A lightweight iOS product for daily dhikr, tasbih counting, qibla direction, and localized Islamic practice support.
Rushi
Scripture reading and copy-practice app
Rushi brings together the Diamond Sutra, Heart Sutra, multilingual scripture text, mala counting, quiet sound, and source-backed copybook practice based on open or public-domain source images. Reading and mala features are free; Copy Practice Unlock is an optional one-time in-app purchase handled by Apple StoreKit.
About
Hooosberg is an independent software studio operated by Yuanbo Hu.
Contact: zikedece@proton.me