The problem
A disabled Flutter Web slider could announce incorrect value and range semantics once re-enabled.
Engineering / Evidence
The work behind the result.
Four concise case studies from my merged engineering contributions, followed by the complete record of nine upstream merges. No invented metrics.
01 / Flutter / Accessibility
A slider that reports the correct accessible value
The fix
Initialize the semantics values at the point the accessibility role is attached.
The evidence
Focused regression coverage and an upstream merge after maintainers reviewed the patch.
02 / Dart-Code / WebSocket reliability
Make DTD requests settle reliably after disconnects
The problem
RPC promises could hang after WebSocket close; sends could reach connecting or closed sockets.
The fix
Reject pending requests on disconnect/disposal, require an OPEN socket, and handle fire-and-forget shutdown paths.
The evidence
Regression tests covering CONNECTING, disconnect and shutdown; merged by DanTup on 9 November 2026.
03 / Dart-Code / Reliability
Correctly disposing asynchronous tooling callbacks
The problem
Events could continue firing after a VS Code extension was disposed.
The fix
Guard the DTD callback lifecycle and stop handling events after disposal.
The evidence
Targeted regressions, review iterations and the merged patch.
04 / Dart-Code / Testing
Faster command tests without real tool launches
The problem
Tests that only needed to check command invocation were launching real Dart/Flutter tools.
The fix
Use deterministic process stubs while keeping result and argument assertions.
The evidence
A focused Flutter test group improved from roughly 24 seconds to 3 seconds locally; changes merged following review.
05 / Flutter + Laravel
FamilyMove — private client pilot
Scope
Bilingual family-fitness pilot; not publicly released.
Implementation
Flutter and Laravel for workouts, family accounts, reports and notifications.
Verification
Private client repository. Appropriate technical scope available on request.
No private client data or credentials are published.
06 / Android · Flutter
Tasbehati / تسبيحاتي
Flutter Android app for Quran, adhkar and daily spiritual tools. Published on Google Play.
Open on Google Play ↗01 / OPEN-SOURCE CONTRIBUTIONS
The work is public.
All nine engineering pull requests merged into upstream projects. Each link opens the real code, discussion and review.
Ordered by engineering impact, technical depth and regression evidence — not merge date.
01Correct slider accessibility semanticsInitialize the accessible value and range when a disabled slider is re-enabled.#195564 ↗02Prevent DTD requests from hanging after disconnectsReject abandoned requests, guard non-OPEN sockets, and cover disconnects and shutdown in regression tests.#6367 ↗03Guard DTD callbacks during extension shutdownFix asynchronous events that outlived the VS Code extension lifecycle.#6349 ↗04Make command tests fast and deterministicRemove real Dart/Flutter process launches in command tests; verify behavior with stubs.#6373 ↗05Fix project discovery under hidden foldersRepair test filters and pubspec handling when ancestors are hidden directories.#6301 ↗06Fix Neovim Pkl language-server settingsCorrect nested LSP settings and add headless regression verification.#75 ↗07Test Dart SDK search precedenceLock down SDK discovery and workspace scan precedence with focused tests.#6337 ↗08Package commands and pubspec regression testsAdd coverage for package-management commands, cancellation and watcher behavior.#6332 ↗09Test VS Code project creation flowsCover project-creation validation, error paths, cancellation and configuration.#6324 ↗
03 / CONTACT
Email me ↗Let's work on the real problems.
Remote Flutter/Dart, backend, tooling and reliability work. Available for paid opportunities.