I care about more than a feature checking a box: it should work for users, survive real-world edge cases, be understandable in the UI, and not regress when the next update lands.

• Volume Control: Mozilla Add-ons listed 73,348 Firefox users when checked on October 15, 2026. User counts fluctuate; the live listing is the current source.
• Windows Maintenance Tool: Featured in Neowin's April 2026 coverage of WMT's expanding features. The project predates my fork; I focus on extending and improving the GUI and associated workflows.
• Public development: Active work spans user-facing software, systems administration, media processing, build automation, cross-platform packaging, debugging and research prototypes.

PowerShell · WPF/XAML · Windows internals · WinGet · Background processing

My extended fork of the Windows Maintenance Tool originally developed by ios12checker. I have worked on turning complex administration tasks into an integrated Windows 10/11 desktop experience rather than requiring users to assemble disconnected scripts and utilities.

Areas of substantial work include:

• A GUI for system cleanup, updates, repairs, optional Windows features, driver and disconnected-device maintenance, firewall rules, registry tweaks, compression and diagnostics.
• A searchable Quick Find interface and more discoverable controls, with attention to safe navigation, status visibility, confirmations and recoverable changes.
• Software and game-library workflows involving WinGet, Chocolatey, Scoop, npm, pip, Steam, GOG and Legendary, plus install/update/import/locate scenarios.
• WPF responsiveness work: moving slow scans and status checks off the UI thread, addressing PowerShell runspace/pipeline lifecycle bugs and improving cancellation behavior.
• Installer, provider and logging reliability, version checks, self-updating, CI/release workflows and release provenance.

Engineering themes: concurrency, correctness, user safety, maintainability and practical diagnostics.
Explore WMT →

JavaScript · WebExtensions · Web Audio API · Firefox · Chromium

A widely used browser audio extension, maintained and substantially expanded from its earlier open-source roots.

• Per-site and per-tab volume adjustment, including attenuation and boosting above normal browser limits where media access permits.
• Mono audio, optional normalization, remembered settings, exclusion rules, URL/path matching, hotkeys and clear popup feedback.
• Work on dynamically created media, iframes, single-page applications, WebAudio graphs, audio transitions and compatibility with video players.
• Explicit handling of DRM-restricted and cross-origin media: features that cannot safely work are reported or disabled rather than silently claimed to work.
• Regression testing, browser packaging, privacy-aware local settings and release automation.

Install from Firefox Add-ons → · Source & documentation →

TypeScript · React/Next.js · WebGL2 · Electron · Tauri · Image processing

My ambitious, actively developed source-available photo editor for browser and desktop use. It draws workflow inspiration from Photoshop, GIMP, Photopea and other creative suites, while documenting what is and is not yet supported.

• Layered documents; selections, painting, retouching and transforms; editable text/shapes; masks, adjustment layers and Smart Object workflows.
• Photoshop-style workspace layouts, docking and floating panels, themes, customizable tools and keyboard shortcuts.
• PSD/PSB and broader image-format work, RAW development, metadata and color workflows, video frame import, and ongoing PDF/document compatibility research.
• Plug-in and filter integration experiments, GIMP-related workflows, local processing, optional AI tools, recovery, build distribution and browser testing.
• Web/PWA, Electron desktop, Tauri WebView and browser-extension distribution paths.

Status note: This is an evolving editor, not a claim of full Photoshop/GIMP parity. Its repository license is source-available and non-commercial, not an OSI-approved open-source license.

Try the editor → · Features and limitations →

Rust · egui/eframe · FFmpeg/FFprobe · Media metadata · Cross-platform builds

A Rust-native desktop media conversion and processing app with an embedded player, interactive trim controls and batch orchestration. The GUI and job management are Rust; actual encoding and decoding use external FFmpeg tools.

• Background probing, queued conversion jobs, progress, cancellation, output validation and profile/preset handling.
• Video, audio, subtitles, stream copy/rewrapping, filters, frame and audio analysis.
• H.264, HEVC, AV1 and other formats through the available FFmpeg codecs, with optional hardware-encoder paths where supported.
• Portable/native release packaging and cross-platform workflows.

Status: An active project, not yet a one-for-one replacement for mature post-production software.
See Rust Encoder →

Rust · Video editing · Codec work · AV1/HDR research

Work in a fork of the ArtCraft video-editing ecosystem, with an emphasis on reviewing, integrating and validating AV1-related encoding/decoding changes, hardware paths, color precision and HDR handling. This is collaborative, evolving codec work; I do not represent experimental paths as universally validated.

Explore the fork →

A note on attribution: Several repositories above are forks of existing projects. I distinguish original products, maintained forks, enhancements and experiments, and credit the upstream developers in their project repositories. Project licenses and feature-completeness vary.

1. Make difficult tasks approachable. Replace confusing command sequences with discoverable, inspectable interfaces.
2. Keep the interface responsive. Run long operations in the background, make cancellation honest, and control resource lifetimes.
3. Test real integrations. A successful compile does not prove a driver scan, media player, extension or installer works in practice.
4. Design for failure. Report unsupported features, preserve safe defaults, and avoid misleading success messages.
5. Respect upstream work. Improve and integrate existing software where appropriate, with clear source attribution and licensing.

These certificates are listed on my public LinkedIn profile. Issuers and award dates below are taken from that listing; they are not claims of a university degree or of separate professional licensure.

Additional studies: My LinkedIn education section lists Columbia University (2025) with learning focused on statistical inference, probability, hypothesis testing, confidence intervals and data analysis. I make no degree claim here.

Professional background: LinkedIn also lists experience associated with Branching Media UG. Visit my LinkedIn profile for the latest work-history details and credential records.

• 📰 In the news: Neowin on Windows Maintenance Tool and its expanding Windows 11 features (April 2026)
• 🦊 Live product: Volume Control on Mozilla Add-ons
• 🖼️ Live application: Chay's Photo Studio
• 📦 Browse all repositories: github.com/Chaython?tab=repositories
• 💼 Certificates and professional updates: LinkedIn

I'm interested in practical bug reports, reproducible performance problems, thoughtful feature proposals, interoperability work and well-tested contributions. The relevant repository's Issues, Pull Requests, README and license are the best place to begin.

Ongoing development can be supported through GitHub Sponsors, Patreon, Buy Me a Coffee, PayPal or cryptocurrency donation addresses (USDC uses Base).

_{Building, testing, fixing and documenting software that people can actually use.}