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Andy Duplain

PROFILE

Andy Duplain

Over 15 months, contributed to the nymtech/nym-vpn-client repository by building and enhancing core VPN features, focusing on cross-platform reliability, security, and maintainability. Delivered robust configuration management, dynamic gateway selection, and hybrid split tunneling, while integrating ad-blocking and geo-exclusion capabilities. Leveraged Rust and C++ for backend development, emphasizing asynchronous programming and system-level networking. Improved Windows driver signing, streamlined build automation with CI/CD, and strengthened diagnostics and error handling. The work included API design and integration, state management, and test infrastructure improvements, resulting in a more stable, user-configurable VPN client with enhanced observability and platform compatibility across Windows, Linux, and iOS.

Overall Statistics

Feature vs Bugs

85%Features

Repository Contributions

118Total
Bugs
10
Commits
118
Features
55
Lines of code
563,795
Activity Months15

Work History

July 2026

1 Commits • 1 Features

Jul 1, 2026

Month: 2026-07 — Key feature delivered: Gateway Cache Refresh Control and Paused State Synchronization in nymtech/nym-vpn-client. Implemented pause/resume for the gateway cache refresh to improve control over connectivity-triggered fetches; reused existing firewall API endpoints to reduce unnecessary calls; updated state management to reflect the paused state across components for cohesive workflow. Commit NYM-4894: 31a9c345f61a1e64911facb59b9ed8fba29bc594. Overall impact: reduced API chatter, improved reliability during network transitions, and clearer cross-component synchronization. Technologies/skills demonstrated: feature development, state management, API endpoint reuse, and Git-based traceability.

June 2026

9 Commits • 5 Features

Jun 1, 2026

June 2026 monthly summary for nym-vpn-client focused on reliability, cross-platform support, and maintainability. Key features delivered include: 1) Connection reliability and monitoring enhancements: fix IPv6 routing, add exit gateway blacklist for failed connections, stabilize reconnects, and improve monitoring/logging. 2) Geo-exclusion defaults and port change: disable Geo Exclusion by default and set the default listening port to 1081 to simplify setup, with tests updated. 3) Ad-blocking and geo exclusion updater: new file updater mechanism to manage files used for ad-blocking and geo exclusion. 4) iOS tunnel statistics reporting: transmit network statistics over the tunnel for diagnostics. 5) Windows compatibility and test environment improvements: dependency updates and improved Windows host-resolution tests. Major bug fix: Split Tunnel Driver crash resolved to prevent crashes during failure scenarios. Impact: higher reliability and observability, easier onboarding and deployment, and broader cross‑platform support. Technologies/skills demonstrated: Rust, WireGuard integration, tokio-based async patterns, cross‑platform CI/tests, and code quality improvements (refraining from unsafe unwraps in critical code paths).

May 2026

21 Commits • 8 Features

May 1, 2026

May 2026 performance snapshot: Delivered cross-repo features and reliability improvements for the nym-vpn-client and core nym stack, emphasizing stability, observability, and maintainability. Key outcomes include Geo Exclusion rollout (renaming Airporting to Geo Exclusion) with updated config/interfaces for geographic-based routing, Windows platform resilience (including ARM support, artifact handling alignment, and safer resource/DB teardown), enhanced diagnostics and bandwidth observability, and architectural simplifications (removal of Lewes Protocol) plus essential dependency updates.

April 2026

9 Commits • 3 Features

Apr 1, 2026

April 2026: Delivered security-focused driver signing and build workflow enhancements, cross-platform Hybrid Split Tunneling, a strategic dependency upgrade for the VPN client, and a critical deadlock fix in the Windows Split Tunnel driver. These changes improved security, reliability, and platform coverage while accelerating secure deployments and end-user performance.

March 2026

8 Commits • 4 Features

Mar 1, 2026

March 2026 monthly summary for nymtech/nym-vpn-client: Focused on delivering cross-platform features, tightening security, and improving maintainability. Key features delivered include Linux ad-blocking integration, Windows split tunneling with driver signing, licensing attributions and copyright updates, and dependency/gateway data structure refinements. These efforts drive business value by enhancing user experience across platforms, increasing reliability and compliance, and optimizing performance metrics handling.

February 2026

12 Commits • 5 Features

Feb 1, 2026

February 2026: Delivered major account-management and networking enhancements for nym-vpn-client, with cross-platform improvements (iOS/Windows) and a stability-focused VPN architecture refresh. Implemented Privy account linking with UI label change to improve onboarding clarity; introduced account identity APIs enabling canonical identity flows; extended account summaries for richer authentication data; added Windows DNS resolver with ad-blocking integration; refactored VPN client to WireGuardConfiguration and aligned with parmigiano changes; and addressed critical fixes to reduce release risk on iOS and in test tooling. These efforts crop to stronger security, better UX, and more reliable platform performance across target environments.

January 2026

13 Commits • 5 Features

Jan 1, 2026

2026-01 Monthly Summary: Focused delivery on VPN core robustness, user-facing visibility, proxy capabilities, and streamlined authentication. Key work reduced latency and improved reliability, enhanced subscription visibility for users, and stabilized the development branch through targeted fixes.

December 2025

12 Commits • 5 Features

Dec 1, 2025

December 2025 performance summary for nym-vpn-client focused on delivering robust cross-platform SOCKS5 support, smarter gateway/ tunnel behavior, and improved platform stability. Key outcomes include a more reliable VPN experience, faster gateway re-selections, and safer config changes, backed by stronger tests and observability.

November 2025

11 Commits • 6 Features

Nov 1, 2025

November 2025 monthly summary for nymtech/nym-vpn-client focused on delivering user-centric connectivity features, reliability improvements, and cross-platform readiness. The work solidified product stability, expanded configurability, and aligned releases with upcoming beta milestones, driving business value through better user experience and reduced operational risk.

October 2025

9 Commits • 5 Features

Oct 1, 2025

October 2025 performance summary focusing on delivering measurable business value and strengthening reliability across nym-vpn-client and core nym. The month emphasized gateway performance, dynamic network configuration, API resilience, and stability, with improvements designed to reduce downtime, shorten deployments, and streamline future work.

September 2025

9 Commits • 6 Features

Sep 1, 2025

Monthly performance summary for 2025-09 focusing on delivery of key VPN client enhancements, reliability improvements, and capabilities that drive business value. Emphasizes architecture shifts (async I/O, streaming), configurability, and observability.

August 2025

1 Commits

Aug 1, 2025

August 2025 focused on reliability enhancements for the nymtech/nym-vpn-client project. Implemented Build Script Robustness by ensuring required directories exist before path canonicalization, preventing build script failures across environments. The fix improves cross-environment build stability and developer experience, tying to the commit that addresses canonicalize() failures.

March 2025

1 Commits • 1 Features

Mar 1, 2025

March 2025: Theme maintenance for Visual Assist Dark Theme in zed-industries/extensions. Delivered v0.0.5 with a targeted submodule update and extensions.toml change, enabling minor bug fixes and UI improvements while maintaining release traceability.

February 2025

1 Commits

Feb 1, 2025

February 2025 summary: Fixed UI stability and improved compatibility for the Visual Assist Dark extension by upgrading the submodule to fix Scrollbar deprecation and align with the latest theming API. Delivered Visual Assist Dark extension v0.0.4, stabilizing UI across themes and reducing upgrade friction. The update enhances user experience, maintainability, and future-proofing against styling API changes.

November 2024

1 Commits • 1 Features

Nov 1, 2024

Monthly Summary for 2024-11 (repository: zed-industries/extensions). Key focus was delivering a UI theme upgrade by updating Visual Theme Version Update: visual-assist-dark to v0.0.3 and aligning the corresponding submodule hash. The update ensures updated visuals and asset consistency across the extension, reducing visual drift and preparing for upcoming UI enhancements. No major bugs were fixed this month; stability and release hygiene were prioritized. Technologies demonstrated include Git submodules, versioned theme assets, and commit-based release coordination. Business impact includes improved user experience, consistent visuals, and smoother upgrade paths for UI themes.

Activity

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Quality Metrics

Correctness90.8%
Maintainability85.6%
Architecture86.6%
Performance84.6%
AI Usage25.6%

Skills & Technologies

Programming Languages

BashC++GoINFJSONJavaScriptKotlinMarkdownNSISPowerShell

Technical Skills

API Client DevelopmentAPI Client IntegrationAPI DesignAPI DevelopmentAPI IntegrationAPI designAPI developmentAPI integrationAsync ProgrammingAsynchronous ProgrammingBackend DevelopmentBuild AutomationBuild SystemsC++C++ development

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

nymtech/nym-vpn-client

Aug 2025 Jul 2026
12 Months active

Languages Used

RustMarkdownProtobufC++protobufJSONNSISTOML

Technical Skills

Build SystemsRustSystem ProgrammingAPI DesignAPI DevelopmentAsynchronous Programming

nymtech/nym

Oct 2025 May 2026
2 Months active

Languages Used

Rust

Technical Skills

API DevelopmentRustAsynchronous ProgrammingConcurrencyRust programmingasynchronous programming

zed-industries/extensions

Nov 2024 Mar 2025
3 Months active

Languages Used

TOML

Technical Skills

Configuration Management