spruceid/sprucekit-mobile
Nov 2024 – Jun 2026
5 Months active
Languages Used
JavaKotlinSwiftYAMLRust
Technical Skills
Android DevelopmentConfiguration ManagementMobile DevelopmentSwiftUIUI DevelopmentUI/UX Development
Gregório Granado Magalhães
PROFILE
Gregório Granado Magalhães
Contributed to spruceid/sprucekit-mobile by delivering six features over five months, focusing on mobile credential workflows and cross-platform consistency. Developed CWT credential support and OID4VP draft interoperability, enabling secure, standards-aligned verification across Android and iOS. Enhanced user experience with UI improvements such as an iOS Accordion component and an Android QR code refresh indicator. Improved Android BLE reliability through a robust state machine and ISO 18013-5 alignment, addressing lifecycle and permissions challenges. Collaborated on translation layers for evolving protocols, emphasizing maintainability and risk reduction. Utilized Kotlin, Swift, and Rust, applying expertise in cryptography, Bluetooth, and mobile SDK development.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
10Total
Bugs
0
Commits
10
Features
6
Lines of code
12,606
Activity Months5
Work History
June 2026
1 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for spruceid/sprucekit-mobile focused on feature delivery, stability, and cross-version VP interoperability. Delivered OID4VP Draft 13 support with an on-the-fly translation layer to Draft 18 format, preserving processing semantics and maintaining compatibility with the existing Draft 18 pipeline. The work reduces integration risk for downstream services and positions the mobile kit for upcoming OID4VP updates. Documented collaboration and traceability via a co-authored commit.
1 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for spruceid/sprucekit-mobile focused on feature delivery, stability, and cross-version VP interoperability. Delivered OID4VP Draft 13 support with an on-the-fly translation layer to Draft 18 format, preserving processing semantics and maintaining compatibility with the existing Draft 18 pipeline. The work reduces integration risk for downstream services and positions the mobile kit for upcoming OID4VP updates. Documented collaboration and traceability via a co-authored commit.
June 2026
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for sprucekit-mobile: Implemented a QR Code Scan Timeout Refresh Indicator to refresh the QR code after a 30-second scan timeout on Android. This UX improvement reduces friction in the QR flow and supports smoother onboarding. Commit 7819456ebf670e47813d3275573dbc69ea3e0bd0 references the change (ticket #231).
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for sprucekit-mobile: Implemented a QR Code Scan Timeout Refresh Indicator to refresh the QR code after a 30-second scan timeout on Android. This UX improvement reduces friction in the QR flow and supports smoother onboarding. Commit 7819456ebf670e47813d3275573dbc69ea3e0bd0 references the change (ticket #231).
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 | Repository: spruceid/sprucekit-mobile Overview: Focused on Android BLE stability and presentation reliability. Implemented a robust BLE state machine, added utilities, and ISO 18013-5 alignment. Improved presentation flow and Bluetooth connection handling to ensure proper lifecycle management and permissions. Code cleanup across the Bluetooth subsystem reduced regressions and set groundwork for future improvements. Key features delivered: - Mobile SDK BLE stability and presentation reliability: New Android BLE state machine, utilities, and ISO 18013-5 alignment; improved presentation flow and Bluetooth connection handling for correct lifecycle and permissions. Commits: 5035e8bfa70e7922986a34848870c8b3a17d08a5; 10e1b75386f0c4e0d24a6dffb846b2645f6e14ff Major bugs fixed: - Fixed waiting-for-holder race condition in BLE connection setup (commit 10e1b75386f0c4e0d24a6dffb846b2645f6e14ff). Overall impact and accomplishments: - Increased stability and reliability of BLE interactions on Android, improved lifecycle and permissions handling, and ISO 18013-5 alignment. Results include smoother device pairing and a more consistent user onboarding experience, reducing support friction. Technologies/skills demonstrated: - Android BLE stack design and state machine architecture - Lifecycle management and permissions handling for Bluetooth - ISO 18013-5 alignment - Subsystem code cleanup and refactor - Cross-functional collaboration and incremental delivery
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 | Repository: spruceid/sprucekit-mobile Overview: Focused on Android BLE stability and presentation reliability. Implemented a robust BLE state machine, added utilities, and ISO 18013-5 alignment. Improved presentation flow and Bluetooth connection handling to ensure proper lifecycle management and permissions. Code cleanup across the Bluetooth subsystem reduced regressions and set groundwork for future improvements. Key features delivered: - Mobile SDK BLE stability and presentation reliability: New Android BLE state machine, utilities, and ISO 18013-5 alignment; improved presentation flow and Bluetooth connection handling for correct lifecycle and permissions. Commits: 5035e8bfa70e7922986a34848870c8b3a17d08a5; 10e1b75386f0c4e0d24a6dffb846b2645f6e14ff Major bugs fixed: - Fixed waiting-for-holder race condition in BLE connection setup (commit 10e1b75386f0c4e0d24a6dffb846b2645f6e14ff). Overall impact and accomplishments: - Increased stability and reliability of BLE interactions on Android, improved lifecycle and permissions handling, and ISO 18013-5 alignment. Results include smoother device pairing and a more consistent user onboarding experience, reducing support friction. Technologies/skills demonstrated: - Android BLE stack design and state machine architecture - Lifecycle management and permissions handling for Bluetooth - ISO 18013-5 alignment - Subsystem code cleanup and refactor - Cross-functional collaboration and incremental delivery
October 2025
March 2025
2 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for spruceid/sprucekit-mobile. Key feature delivered: CWT Credentials Support in SpruceKit Mobile SDK and Front-End UI, enabling end-to-end parsing, verification, and credential management for Cryptographically Verifiable Tokens (CWT) across Android and iOS. No major bugs fixed this month. Overall impact: extended credential interoperability and trust, enabling secure verification workflows and intuitive UI displays in the mobile app. Technologies demonstrated: cryptographic token standards (CWT), cross-platform mobile development (Android/iOS), SDK-front-end integration, credential management workflows.
March 2025
2 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for spruceid/sprucekit-mobile. Key feature delivered: CWT Credentials Support in SpruceKit Mobile SDK and Front-End UI, enabling end-to-end parsing, verification, and credential management for Cryptographically Verifiable Tokens (CWT) across Android and iOS. No major bugs fixed this month. Overall impact: extended credential interoperability and trust, enabling secure verification workflows and intuitive UI displays in the mobile app. Technologies demonstrated: cryptographic token standards (CWT), cross-platform mobile development (Android/iOS), SDK-front-end integration, credential management workflows.
November 2024
4 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for sprucekit-mobile: Focused on branding consistency and iOS UI parity. Delivered two main features: (1) branding updates for Verifier, Wallet, and the main app to standardize display names across project configuration and example code; (2) an iOS Accordion UI component for the Credential Object Displayer to mirror Android functionality, including new Accordion.swift and AccordionHeader.swift and minor ContentView adjustments. No major bug fixes were recorded this month. These changes improve branding clarity, user experience on iOS when viewing credentials, and cross-platform maintainability. Technologies leveraged include Swift/SwiftUI, with attention to cross-platform parity and maintainability.
4 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for sprucekit-mobile: Focused on branding consistency and iOS UI parity. Delivered two main features: (1) branding updates for Verifier, Wallet, and the main app to standardize display names across project configuration and example code; (2) an iOS Accordion UI component for the Credential Object Displayer to mirror Android functionality, including new Accordion.swift and AccordionHeader.swift and minor ContentView adjustments. No major bug fixes were recorded this month. These changes improve branding clarity, user experience on iOS when viewing credentials, and cross-platform maintainability. Technologies leveraged include Swift/SwiftUI, with attention to cross-platform parity and maintainability.
November 2024
Activity
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Quality Metrics
Correctness92.0%
Maintainability87.0%
Architecture90.0%
Performance82.0%
AI Usage22.0%
Skills & Technologies
Programming Languages
JavaKotlinRustSwiftYAML
Technical Skills
API integrationAndroidAndroid DevelopmentBluetoothBluetooth Low Energy (BLE)CBORCWTCode CleanupConfiguration ManagementCredential ManagementCross-platform Development (iOS/Android)CryptographyISO 18013-5 ImplementationKotlinMobile Development
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