spruceid/sprucekit-mobile
Nov 2025 – Jun 2026
4 Months active
Languages Used
KotlinSwiftRust
Technical Skills
Android DevelopmentKotlinMobile DevelopmentNFC IntegrationSwiftBluetooth Low Energy (BLE)
Allison Pierson
PROFILE
Allison Pierson
Over four months, contributed to spruceid/sprucekit-mobile by building and enhancing mobile credential management features across Android and iOS. Developed NFC credential presentation for Android, enabling secure cross-device sharing and laying the foundation for broader NFC adoption. Improved BLE session lifecycle management, addressing edge-case disconnects and ensuring reliable data transfer. Enhanced device session security by adding MAC0 and Sign1 authentication, and updated dependencies to support NFC reader handover. Delivered Digital Credentials API enhancements, allowing retention and sharing of expired credentials with policy-driven lifecycle management. Work demonstrated proficiency in Kotlin, Rust, and Swift, with a focus on mobile development and secure API design.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
6Total
Bugs
1
Commits
6
Features
4
Lines of code
2,716
Activity Months4
Work History
June 2026
1 Commits • 1 Features
Jun 1, 2026June 2026 — SpruceKit-Mobile delivered a key Digital Credentials API enhancement focused on credential lifecycle and sharing. The feature enables retaining expired credentials and sharing credentials that are expired or not-yet-valid, backed by an invalidation policy to govern lifecycle. UI indicators now reflect credential validity, improving user clarity and reducing misinterpretations. This work is under PR with commit 50d5cbd9f18d8780ae8eda299773183a3f28155b (WIP: support retaining expired credentials for DC-API, #330). Business value: improved interoperability, streamlined credential workflows, and lower re-issuance costs. Technical skills demonstrated: API design for lifecycle management, policy-based invalidation, UI state synchronization, and effective code review/commit hygiene in a mobile ecosystem.
1 Commits • 1 Features
Jun 1, 2026June 2026 — SpruceKit-Mobile delivered a key Digital Credentials API enhancement focused on credential lifecycle and sharing. The feature enables retaining expired credentials and sharing credentials that are expired or not-yet-valid, backed by an invalidation policy to govern lifecycle. UI indicators now reflect credential validity, improving user clarity and reducing misinterpretations. This work is under PR with commit 50d5cbd9f18d8780ae8eda299773183a3f28155b (WIP: support retaining expired credentials for DC-API, #330). Business value: improved interoperability, streamlined credential workflows, and lower re-issuance costs. Technical skills demonstrated: API design for lifecycle management, policy-based invalidation, UI state synchronization, and effective code review/commit hygiene in a mobile ecosystem.
June 2026
April 2026
2 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for sprucekit-mobile: Key features delivered: - Device Session Management: added MAC0 authentication support and updated signature validation to accommodate both Sign1 and MAC0. Commit: be37ce0b68da3935066a9ce43d0c6151cd29ca8d. - NFC support enhancements via isomdl update: updated isomdl dependency to enable NFC reader handover, improving mobile SDK NFC capabilities. Commit: 5f733ac6d443e66f0464d51e79f3a5141c962a39. Major bugs fixed: none reported this month. Overall impact and accomplishments: Strengthened security posture by adding MAC0/Sign1 authentication support, enabling flexible device onboarding. NFC improvements enhance mobile NFC capabilities and developer experience, reducing integration time. Technologies/skills demonstrated: authentication protocol support (MAC0, Sign1), dependency updates (isomdl), mobile SDK feature work, clear commit messaging linked to issues (#301, #304).
April 2026
2 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for sprucekit-mobile: Key features delivered: - Device Session Management: added MAC0 authentication support and updated signature validation to accommodate both Sign1 and MAC0. Commit: be37ce0b68da3935066a9ce43d0c6151cd29ca8d. - NFC support enhancements via isomdl update: updated isomdl dependency to enable NFC reader handover, improving mobile SDK NFC capabilities. Commit: 5f733ac6d443e66f0464d51e79f3a5141c962a39. Major bugs fixed: none reported this month. Overall impact and accomplishments: Strengthened security posture by adding MAC0/Sign1 authentication support, enabling flexible device onboarding. NFC improvements enhance mobile NFC capabilities and developer experience, reducing integration time. Technologies/skills demonstrated: authentication protocol support (MAC0, Sign1), dependency updates (isomdl), mobile SDK feature work, clear commit messaging linked to issues (#301, #304).
March 2026
2 Commits
Mar 1, 2026March 2026 — sprucekit-mobile: Stabilized BLE connection lifecycle and session management to deliver reliable, predictable BLE data flows. Key fixes focused on the BLE state machine to prevent duplicate events and ensure proper termination of connections after data handling, aligning with commit history and improving user experience. Impact: fewer edge-case disconnects and more robust session handling during data presentation and transfer across devices.
2 Commits
Mar 1, 2026March 2026 — sprucekit-mobile: Stabilized BLE connection lifecycle and session management to deliver reliable, predictable BLE data flows. Key fixes focused on the BLE state machine to prevent duplicate events and ensure proper termination of connections after data handling, aligning with commit history and improving user experience. Impact: fewer edge-case disconnects and more robust session handling during data presentation and transfer across devices.
March 2026
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary focusing on delivering NFC Credential Presentation in sprucekit-mobile. Key features delivered: Initial Android NFC Credential Presentation support enabling sharing of credentials via NFC. Major bugs fixed: No major bugs reported this month. Overall impact and accomplishments: Enabled cross-device credential sharing via NFC, improving user workflow and onboarding; laid groundwork for broader NFC adoption in the mobile app, contributing to faster credential provisioning and improved user satisfaction. Technologies/skills demonstrated: Android NFC integration, secure credential handling, committed delivery with standard governance (Signed-off-by and Co-authored-by), alignment with PR references (#196).
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary focusing on delivering NFC Credential Presentation in sprucekit-mobile. Key features delivered: Initial Android NFC Credential Presentation support enabling sharing of credentials via NFC. Major bugs fixed: No major bugs reported this month. Overall impact and accomplishments: Enabled cross-device credential sharing via NFC, improving user workflow and onboarding; laid groundwork for broader NFC adoption in the mobile app, contributing to faster credential provisioning and improved user satisfaction. Technologies/skills demonstrated: Android NFC integration, secure credential handling, committed delivery with standard governance (Signed-off-by and Co-authored-by), alignment with PR references (#196).
Activity
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Quality Metrics
Correctness83.4%
Maintainability83.4%
Architecture83.4%
Performance83.4%
AI Usage26.6%
Skills & Technologies
Programming Languages
KotlinRustSwift
Technical Skills
API developmentAndroid DevelopmentBluetooth Low Energy (BLE)KotlinMobile DevelopmentNFC IntegrationRustSwiftUI/UX Designbackend developmentdependency managementiOS Developmentmobile development
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