I build practical software end to end: commercial macOS products, AI-agent tooling, and infrastructure/monitoring libraries, mostly in Swift and Rust.
Status: active commercial product, private source
What it is: a macOS transcription and productivity app, built solo from app to website to licensing.
Stack:
- macOS app: Swift, SwiftUI/AppKit, AVFoundation, Sparkle, KeyboardShortcuts
- Transcription: WhisperKit
- Persistence and licensing: GRDB/SQLite, CryptoKit/Security
- Backend tooling: Rust license server, SQLite
- Website: Next.js, React, TypeScript, MDX, Cloudflare/OpenNext
- Testing: XCTest, Playwright, Vitest
Status: shipped commercial product, private source
What it is: a native macOS dashcam footage manager for session navigation and export, built solo.
Stack:
- macOS app: Swift, SwiftUI/AppKit, AVFoundation/AVKit, CoreMedia
- Video and location: VideoToolbox, Metal, MapKit/CoreLocation
- Persistence and commerce: GRDB/SQLite, StoreKit
- Build and release: XcodeGen, fastlane
- Website: Next.js, React, TypeScript, Cloudflare/OpenNext
- Testing: XCTest, Swift Testing, Playwright, Vitest
Status: actively maintained open source
Stack: Bash, Bats, Python, Make, jq, git/GitHub workflow tooling
What it is: a task pipeline for coding agents: capture, plan, test, implement, refactor, review, audit, and validate before calling work done.
Status: actively maintained open source
Stack: Rust 2024, clap, serde/JSONL, chrono, thiserror
What it is: logged atomic file move and trash operations with an append-only JSON-Lines audit trail, built for safer autonomous-agent file operations.
Status: actively maintained open source at ITRS Group
Stack: Rust 2024, optional AES/CBC/zeroize secure environment support, proptest/pretty_assertions tests
What it is: a Rust library for building Geneos Toolkit-compatible applications, written with a small dependency surface for regulated production environments.
Status: actively maintained open source at ITRS Group; pre-release preview / best-effort support
Stack: Rust, clap, tokio/futures, serde JSON/YAML, CSV, OpenSSL, perfdata, assert_cmd/predicates tests
What it is: a CLI and library that runs Nagios-compatible plugins asynchronously and formats their output for the Geneos Toolkit Plugin.
- opsview-rs - Rust Opsview API client. Stack: Rust, reqwest, tokio, serde, criterion, mockito/httpmock.
- voxtus - transcription CLI for YouTube and local media. Stack: Rust, whisper-rs, yt-dlp, tokio, clap.
- bibcal, luminary, org.bibcal.www - biblical calendar libraries, CLI, and website. Stack: Clojure, Leiningen, tick, Ring/Compojure/Hiccup, Docker, GraalVM native image.
- solar-calendar-events - Rust library for equinoxes and solstices.
- check_jitter and check_macos_updates - Nagios/Opsview-style monitoring plugins. Stack: Rust, clap, nagios-range.
- kjv-org - Authorized King James Version in Org mode.
- combine-dashcam-cameras - Python utility for combining separate dashcam camera folders into VIOFO-style outputs.
- parrotscribe-mcp - archived MCP server for early Parrot Scribe agent integration. Stack: TypeScript, Node.js, Model Context Protocol SDK, Vitest.
Eight years at ITRS working with banks and exchanges across support, presales, and customer solutions. That work shaped my bias toward operable systems, clear diagnostics, boring automation, and software that survives contact with production users.
AI-agent workflows, auditable automation, retrieval/evaluation systems, macOS products, and practical developer tooling.
Based in Manila, working globally.