A native, keyboard-first week calendar I built with Claude Code to replace Fantastical. It reads the calendars macOS already syncs, so it has no sync code and no database.
From the Claude app to terminal windows, to herdr, to my own macOS command centre for about 50 Claude Code sessions. Every feature, screenshots and a performance review.
A native clipboard history that replaced Alfred's: 1 hotkey, type a few letters, Return copies the entry back. It opens in 20 ms, filters 11,000 entries in under 5 ms and runs actions on any entry.
A native macOS world clock I built with Claude Code: a small card in the screen corner with my time, my next meeting in the client's time, and a click away from 4 time zones. 14 MB of memory.
A native agent I built with Claude Code to replace Default Folder X: a default folder per app, a strip of folders next to every Open and Save dialog, and a ⌘J palette.
A command-line duplicate finder with a native review window, built with Claude Code to replace Gemini 2. It links backup copies instead of deleting them, and scans 328,000 files in 21 seconds.
A native Mac app I built with Claude Code to replace AnyTrans for iOS: it opens when I plug in an iPhone or iPad, copies photos and app files both ways, and deletes nothing it hasn't verified.
A native macOS music player I had my AI agent build to replace Audirvana: bit-perfect local playback, ReplayGain on every track, my Sonos speakers as 1 group, Apple Music for discovery, and 5x less memory.
A native image viewer with presets built in. It replaced Preview for images and ImageOptim: it opens a photo up to 4x faster than Preview and shrinks 100 images in 1 s instead of 98 s.
A native launcher I built with Claude Code to replace Alfred 5 after it froze. ⌘Space, a few letters, ↩: apps, commands, URLs, folders, file search and offline answers.
A native menu bar app and CLI I built with Claude Code for my Elgato Key Lights, my Hue lights and Night Shift. Presets in 1 file, a light change in about 55 ms. It replaces Elgato Control Center and Shifty.
A native Markdown editor that keeps my VS Code shortcuts, opens a note in 20 ms and runs 4 windows in 119 MB. Built with Claude Code in 21 prompts over a weekend.
A native Mac video player my AI agent built to replace VLC and IINA. It opens a file 2.4x faster, uses 5x less memory than VLC, and adds frame grabs for my notes, bookmarks and 2-key clip export.
When a person is detected outside, a window opens on my Mac with the live camera stream and the latest clips. It shows in about 1 s, where the old web app took 10 to 20 s.
My own menu bar app, replacing Bartender. 1 button or ⌃⌥⌘M lists every menu bar icon with its image, name and state, opens any icon's menu, and keeps all the other icons out of sight.
A native menu bar app I built with Claude Code to replace CleanShot X: 1 key for a window, a display or an area, the frozen screen up in about 56 ms, the file on disk 21 ms after the click.
A native macOS text expander that replaced Espanso: Markdown snippet files, a search panel, 30 MB of memory instead of 350 MB. Built and switched over in 1 day.
A native rules engine I built with Claude Code to replace Hazel. It renames, moves and runs scripts on new files, never deletes, and can undo every move.
A native macOS sticky note in my NicAI design. 1 to-do list on the screen, fed from my iPhone through iCloud Drive, full screen on all 4 monitors with 1 click.
A native macOS viewer and light editor for SQLite and CSV that replaced TablePlus and Easy CSV Editor: a 624,000-row table on screen in 352 ms, in a 2.6 MB app.
A native text editor that replaces TextMate as my clipboard scratchpad. Against TextMate, CotEditor, Sublime Text and TextEdit, it wins 12 of 16 speed and memory measures.
A tiling window manager I built in 1 day with Claude Code, in Lua inside Hammerspoon. It replaces Amethyst and tiles a new window in 0.1 s instead of 9 s.