stacks-network/sbtc
Oct 2024 – Jan 2026
13 Months active
Languages Used
RustBashClarionDockerfileMakefileMarkdownProtobufSQL
Technical Skills
Backend DevelopmentIntegration TestingMockingRustAPI IntegrationBitcoin
Matteo Almanza
PROFILE
Matteo Almanza
Matteo Jug worked extensively on the stacks-network/sbtc repository, delivering robust backend features and reliability improvements for Bitcoin and Stacks blockchain integration. He engineered deposit and withdrawal workflows, implemented distributed key generation (DKG) logic, and enhanced test infrastructure for parallel and deterministic CI runs. Using Rust, TypeScript, and Docker, Matteo introduced new data models for withdrawal tracking, optimized signing and nonce handling, and modernized the test framework to support cross-component scenarios. His work emphasized maintainability, security best practices, and operational hygiene, resulting in a codebase with strong test coverage, reduced deployment risk, and improved developer experience across blockchain and API components.
Overall Statistics
Feature vs Bugs
66%Features
Repository Contributions
84Total
Bugs
17
Commits
84
Features
33
Lines of code
27,444
Activity Months13
Your Network
9 peopleWork History
January 2026
13 Commits • 1 Features
Jan 1, 2026January 2026 focused on modernizing the test framework and initiating a broad parallel testing rollout for stacks-network/sbtc. The work established a scalable, cross-component test platform that runs tests in parallel and serial modes as appropriate, with explicit bitcoin client injections to support isolated test scenarios across components (Stacks Bitcoin client, Emily client, PostgreSQL tests). This base enables faster feedback, earlier issue surfacing, and more repeatable CI outcomes across the codebase.
13 Commits • 1 Features
Jan 1, 2026January 2026 focused on modernizing the test framework and initiating a broad parallel testing rollout for stacks-network/sbtc. The work established a scalable, cross-component test platform that runs tests in parallel and serial modes as appropriate, with explicit bitcoin client injections to support isolated test scenarios across components (Stacks Bitcoin client, Emily client, PostgreSQL tests). This base enables faster feedback, earlier issue surfacing, and more repeatable CI outcomes across the codebase.
January 2026
December 2025
4 Commits • 3 Features
Dec 1, 2025December 2025 monthly summary focusing on stacks-network/sbtc. Delivered a Fallback API Client with test coverage; CI Reliability and Parallel Testing Infrastructure; and Emily API Dynamic Runtime Context and Table Name Configuration. These changes improved API robustness in testnet, CI reliability, and parallel testing capabilities, delivering business value by reducing risk and accelerating feedback loops.
December 2025
4 Commits • 3 Features
Dec 1, 2025December 2025 monthly summary focusing on stacks-network/sbtc. Delivered a Fallback API Client with test coverage; CI Reliability and Parallel Testing Infrastructure; and Emily API Dynamic Runtime Context and Table Name Configuration. These changes improved API robustness in testnet, CI reliability, and parallel testing capabilities, delivering business value by reducing risk and accelerating feedback loops.
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for stacks-network/sbtc: Delivered DKG trigger logic simplification and backfill hardening, with expanded test coverage and validation across unit and integration tests, improving reliability and maintainability.
2 Commits • 1 Features
Nov 1, 2025November 2025 monthly summary for stacks-network/sbtc: Delivered DKG trigger logic simplification and backfill hardening, with expanded test coverage and validation across unit and integration tests, improving reliability and maintainability.
November 2025
July 2025
3 Commits • 3 Features
Jul 1, 2025July 2025 performance summary for stacks-network/sbtc: Delivered three core feature enhancements, improved efficiency, and enhanced observability, reinforcing platform stability and business value. Strengthened compatibility with the latest Stacks Core and reduced operational overhead by skipping redundant DKG runs, while improving traceability of the Bitcoin pre-sign signing flow.
July 2025
3 Commits • 3 Features
Jul 1, 2025July 2025 performance summary for stacks-network/sbtc: Delivered three core feature enhancements, improved efficiency, and enhanced observability, reinforcing platform stability and business value. Strengthened compatibility with the latest Stacks Core and reduced operational overhead by skipping redundant DKG runs, while improving traceability of the Bitcoin pre-sign signing flow.
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for stacks-network/sbtc: Delivered reliability and stability improvements across signing, distributed key generation (DKG), nonce handling, and documentation, focusing on reducing duplicate work, preserving DKG progress, avoiding nonce-related transaction failures, and improving testnet accessibility. Key outcomes include implementing an LRU cache to prevent signing the same Stacks transaction within a tenure, gating new DKG rounds behind verification of existing shares, correcting nonce handling to stop decrementing on ConflictingNonceInMempool errors, and updating the regtest chainstate documentation link.
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for stacks-network/sbtc: Delivered reliability and stability improvements across signing, distributed key generation (DKG), nonce handling, and documentation, focusing on reducing duplicate work, preserving DKG progress, avoiding nonce-related transaction failures, and improving testnet accessibility. Key outcomes include implementing an LRU cache to prevent signing the same Stacks transaction within a tenure, gating new DKG rounds behind verification of existing shares, correcting nonce handling to stop decrementing on ConflictingNonceInMempool errors, and updating the regtest chainstate documentation link.
June 2025
May 2025
3 Commits • 1 Features
May 1, 20252025-05 monthly summary for stacks-network/sbtc focusing on test reliability, integration coverage for edge cases, and test-environment hygiene. Delivered a new fork-handling integration test for deposits, stabilized withdrawal tests, and added test-database cleanup to prevent resource leakage. These changes reduce CI flakiness, improve accuracy of deployment safety checks, and demonstrate strong testing discipline.
May 2025
3 Commits • 1 Features
May 1, 20252025-05 monthly summary for stacks-network/sbtc focusing on test reliability, integration coverage for edge cases, and test-environment hygiene. Delivered a new fork-handling integration test for deposits, stabilized withdrawal tests, and added test-database cleanup to prevent resource leakage. These changes reduce CI flakiness, improve accuracy of deployment safety checks, and demonstrate strong testing discipline.
April 2025
2 Commits • 1 Features
Apr 1, 2025Monthly summary for 2025-04 focusing on reliability and infrastructure improvements in stacks-network/sbtc. Key deliverables include: (1) robust handling of coinbase transactions for sBTC with graceful ignore, logging, and a dedicated error variant; integration tests verify correct behavior; avoids disruption of sBTC deposits. (2) Infrastructure compatibility update: bumped stacks-blockchain-api image from 8.6.0 to 8.9.0 in Docker Compose to maintain Leather compatibility and removed obsolete Git tag environment variable. These changes reduce deposit failures and prep the stack for Leather upgrades, with clear observability through logs and tests.
2 Commits • 1 Features
Apr 1, 2025Monthly summary for 2025-04 focusing on reliability and infrastructure improvements in stacks-network/sbtc. Key deliverables include: (1) robust handling of coinbase transactions for sBTC with graceful ignore, logging, and a dedicated error variant; integration tests verify correct behavior; avoids disruption of sBTC deposits. (2) Infrastructure compatibility update: bumped stacks-blockchain-api image from 8.6.0 to 8.9.0 in Docker Compose to maintain Leather compatibility and removed obsolete Git tag environment variable. These changes reduce deposit failures and prep the stack for Leather upgrades, with clear observability through logs and tests.
April 2025
March 2025
5 Commits • 3 Features
Mar 1, 2025In March 2025, stacks-network/sbtc delivered reliability, traceability, and operational hygiene improvements across three features, a new data model, and Docker cleanup. Key outcomes include deposit workflow correctness gating before signing rounds with edge-case tests, a new Bitcoin withdrawal tracking data model with migrations and Rust parsing/storage, and SBTC Docker environment cleanup plus a withdrawal multiplier to align fees. These changes reduce risk of incorrect deposits, improve withdrawal traceability, and streamline deployment and maintenance, delivering measurable business value and stronger engineering rigor.
March 2025
5 Commits • 3 Features
Mar 1, 2025In March 2025, stacks-network/sbtc delivered reliability, traceability, and operational hygiene improvements across three features, a new data model, and Docker cleanup. Key outcomes include deposit workflow correctness gating before signing rounds with edge-case tests, a new Bitcoin withdrawal tracking data model with migrations and Rust parsing/storage, and SBTC Docker environment cleanup plus a withdrawal multiplier to align fees. These changes reduce risk of incorrect deposits, improve withdrawal traceability, and streamline deployment and maintenance, delivering measurable business value and stronger engineering rigor.
February 2025
13 Commits • 4 Features
Feb 1, 2025February 2025 (2025-02) summary for stacks-network/sbtc: Delivered key features and reliability improvements across DKG lifecycle, withdrawal workflows, and developer experience. The work enhances security and observability in on-chain coordination, strengthens the demo/testing surface, and reduces maintenance burden for the codebase.
13 Commits • 4 Features
Feb 1, 2025February 2025 (2025-02) summary for stacks-network/sbtc: Delivered key features and reliability improvements across DKG lifecycle, withdrawal workflows, and developer experience. The work enhances security and observability in on-chain coordination, strengthens the demo/testing surface, and reduces maintenance burden for the codebase.
February 2025
January 2025
7 Commits • 3 Features
Jan 1, 2025January 2025 — Monthly summary for stacks-network/sbtc. Delivered key features, hardened reliability, and security improvements across the signer API, event handling, block processing, and safety defaults for sBTC. Notable outcomes include improved resilience to high-volume payloads, stable block processing in the presence of transformation errors, and prevention of unintended minting through conservative defaults. Demonstrated strong test coverage, dependency management, and modular API routing.
January 2025
7 Commits • 3 Features
Jan 1, 2025January 2025 — Monthly summary for stacks-network/sbtc. Delivered key features, hardened reliability, and security improvements across the signer API, event handling, block processing, and safety defaults for sBTC. Notable outcomes include improved resilience to high-volume payloads, stable block processing in the presence of transformation errors, and prevention of unintended minting through conservative defaults. Demonstrated strong test coverage, dependency management, and modular API routing.
December 2024
10 Commits • 5 Features
Dec 1, 2024December 2024 — Stacks-network/sbtc: Key security hardening, reliability, and developer-experience improvements delivered. Highlighted work includes removing default credentials, guarded mintability checks, signer loop hardening, context-window tuning, and build tooling upgrades, driving reduced risk, safer deployments, and improved build/release workflows.
10 Commits • 5 Features
Dec 1, 2024December 2024 — Stacks-network/sbtc: Key security hardening, reliability, and developer-experience improvements delivered. Highlighted work includes removing default credentials, guarded mintability checks, signer loop hardening, context-window tuning, and build tooling upgrades, driving reduced risk, safer deployments, and improved build/release workflows.
December 2024
November 2024
16 Commits • 6 Features
Nov 1, 2024November 2024 monthly summary for stacks-network/sbtc focused on reliability, security, and developer experience improvements. Key features and fixes were delivered with concrete impact to data integrity, security of key rotation, and faster, more observable deployments.
November 2024
16 Commits • 6 Features
Nov 1, 2024November 2024 monthly summary for stacks-network/sbtc focused on reliability, security, and developer experience improvements. Key features and fixes were delivered with concrete impact to data integrity, security of key rotation, and faster, more observable deployments.
October 2024
2 Commits
Oct 1, 2024October 2024 monthly summary for stacks-network/sbtc focused on improving test reliability and stability for integration tests (Emily) and deposit flow tests, resulting in more deterministic CI runs and faster feedback to developers. This work enhances QA coverage, reduces flaky behavior, and establishes a cleaner, more maintainable test foundation for the repository.
2 Commits
Oct 1, 2024October 2024 monthly summary for stacks-network/sbtc focused on improving test reliability and stability for integration tests (Emily) and deposit flow tests, resulting in more deterministic CI runs and faster feedback to developers. This work enhances QA coverage, reduces flaky behavior, and establishes a cleaner, more maintainable test foundation for the repository.
October 2024
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Quality Metrics
Correctness87.6%
Maintainability85.0%
Architecture82.4%
Performance79.2%
AI Usage26.4%
Skills & Technologies
Programming Languages
BashClarionConfigurationDockerfileGoJSONMakefileMarkdownProtobufPython
Technical Skills
API DevelopmentAPI IntegrationAPI developmentBackend DevelopmentBitcoinBitcoin Core RPCBitcoin IntegrationBlockchainBlockchain DevelopmentBlockchain ForksBuild AutomationBuild ProcessBuild SystemsCI/CDCI/CD Configuration
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