OneSyntax
Small, sharp, native apps and tools.
A home for the apps and projects I build. Made by Subhash Jha.
OneCast
One keystroke for everything on your Mac.
A native launcher, AI cockpit, custom docks with live widgets, a plain-English scheduler and a Swift plugin runtime. Built with SwiftUI and AppKit, zero third-party dependencies, no Electron, no telemetry.
- Docks, as many as you wantYour own docks on any edge of any display, with 21 built-in live widgets.
- A scheduler that speaks English"Remind me to stretch every weekday at 4pm" and press return.
- Native Swift pluginsCompiled SwiftUI plugins and dock widgets, alongside Raycast extensions.
- AI, front and centreNamed assistants, your own Claude, Codex or Copilot CLI, MCP servers, on-device tools.
Swift 6 · SwiftUI · AppKit




OnePaper
Beautiful notes for engineers.
A Craft-style block editor for Mac, iPad and iPhone, made for code, math, papers and whiteboards. Now with Scenes: 3D architecture diagrams you can present like a film, or drop into a slide deck. Every page is a sheet in its own colour, and everything syncs privately through your own iCloud.
- Scenes, in 3DArchitecture on paper boards, with packets flowing, lit by your page theme, presented shot by shot.
- A block editor that keeps upSlash commands, Markdown as you type, [[links]] with backlinks, comments and embeds.
- Made for code and MLHighlighted code in 20 languages, LaTeX math, Mermaid, tables and databases.
- Papers, whiteboards and tasksAnnotate PDFs beside your notes, sketch on Excalidraw, and gather every to-do.
Swift 6 · SwiftUI · SwiftData + CloudKit


OnePrompt
A terminal drawn like an ink painting.
Text is written in by hand, ink bleeds into hand-made paper, and deleting a file cuts its name through with a sword. Under the art is a real terminal with tabs, splits, regex find and true colour.
- Written by handNew text is traced along each letter’s pen path as the ink bleeds and dries.
- Strikes what you deleterm a file and every mention of it on screen is cut through.
- Every theme, its own wayTsushima, Chalkboard and Logbook each animate in their own style.
- A real terminalTabs, splits, find with regex, clickable links, IME, mouse and images.
Rust · wgpu

