Blog

Engineering insights, product updates, and deep dives into voice-first terminal automation.

engineeringperformance

191 Script Tags to 1 Bundle: Real Electron Startup Numbers

We ran 400 cold starts across 4 configurations to measure what bundling and startup optimization actually do. Median startup dropped 29.6%. Here are all the numbers.

Apr 1, 202613 min read
engineeringvoice-routingarchitectureperformance

Clipboard Interleaving: Mixing Copied Text into Voice Recordings

How we built time-proportional positioning to merge Cmd+C clipboard text into progressive voice recordings at exactly the right spot.

Apr 1, 20267 min read
engineeringmulti-agentarchitecture

When Two AI Agents Edit the Same File

How we detect, prevent, and resolve conflicts between parallel Claude Code agents editing the same codebase — from session-level tracking to hunk-level git staging.

Mar 24, 202610 min read
engineeringvoice-routingperformanceannouncement

Why Every Voice App Wastes 200ms in Your Browser

We built a Chrome extension that delivers voice-transcribed text via WebSocket in 1-5ms — bypassing the clipboard paste that every other STT tool depends on.

Mar 12, 20264 min read
engineeringarchitecture

Point, Copy, Paste: An Element Inspector Built for Vibe Coders

We built a silent DevTools inspector that copies any UI element's identity — selector, text, aria labels, parent chain — to your clipboard, ready to paste into an LLM. No browser extension required.

Mar 11, 202611 min read
engineeringarchitecture

Shortcuts and Macros: Eliminating Window Switching Entirely

Callipso now mirrors your terminal shortcuts from the overlay and chains them into reusable macros on an N8N-style visual canvas — zero window switching required.

Mar 9, 202612 min read
engineeringarchitecture

Session Archive: FTS5 Full-Text Search Meets Git Commit Cross-Referencing

How we built a searchable archive of every Claude Code session — with SQLite FTS5, Porter stemming, worker-thread indexing, and automatic cross-referencing against your git history.

Mar 9, 202616 min read
landscapearchitecturemulti-agent

The Agent Orchestration Landscape: Where Callipso Fits in March 2026

We mapped every AI coding agent orchestrator we could find — terminal multiplexers, IDE replacements, cloud platforms, voice controllers — and figured out where we stand.

Mar 7, 202619 min read
engineeringarchitecture

Keyboard Shortcut Mirroring: Your Terminal Shortcuts, From the Overlay

Callipso now mirrors Cmd+T, Cmd+W, Cmd+D and other shortcuts across iTerm2, Ghostty, Warp, Kitty, and Terminal.app — no window switching required.

Mar 7, 20268 min read
engineeringarchitecture

Self-Describing IPC Channels: Teaching the Dev Harness to Explain Itself

We added descriptions, categories, and argument hints to 38 IPC channels — so AI agents stop guessing which endpoint to call.

Mar 6, 20268 min read
engineeringvoice-routing

Same Model, 3x Faster: CoreML vs MLX for On-Device Speech Recognition

Same Parakeet 0.6B neural network. Two completely different execution paths. One runs through Python + HTTP + GPU. The other is a Swift binary on the Neural Engine. Here are the numbers.

Mar 2, 20268 min read
engineeringarchitecture

How We Let AI Agents Debug Our Live Electron App

We built a 138-line HTTP proxy that exposes 480 IPC channels to AI agents — and it changed how we build software.

Mar 1, 202611 min read
announcementvoice-coding

Introducing Callipso

Meet Callipso — voice-first terminal automation that bridges the gap between speech and code execution.

Feb 1, 20264 min read
engineeringvoice-routingarchitecture

Voice Routing: A Technical Deep Dive

How Callipso routes voice commands from clipboard to terminal in under 200ms — the state machine, adapter architecture, and hotkey pipeline.

Jan 20, 20268 min read
engineeringrustwebgpuspace-tab

Space Tab: Behind the Scenes

How we built a real-time 3D codebase visualizer with Rust, WebGPU, and WASM — rendering thousands of file nodes at 60fps inside an Electron overlay.

Jan 10, 20267 min read