TaceoLabs/co-snarks
Dec 2024 – Oct 2025
9 Months active
Languages Used
JSONRustShellTOMLTypeScriptMarkdownPythonYAML
Technical Skills
API DesignAsynchronous ProgrammingCircomCryptographyError HandlingExample Implementation
Fabian Gruber
PROFILE
Fabian Gruber
Fabian Gruber developed and maintained the co-snarks repository, focusing on modular, reliable cryptographic tooling for multi-party computation and zero-knowledge proofs. Over nine months, he delivered features such as network capacity enhancements, modularization for WASM readiness, and robust serialization for Circom circuits, while also addressing bugs in cryptographic operations and network reliability. Fabian applied Rust, asynchronous programming with Tokio, and advanced error handling to improve performance, observability, and maintainability. His work included refactoring for modularity, implementing CI/CD improvements, and tightening license compliance, resulting in a codebase that supports secure, scalable deployments and reduces integration friction for downstream users.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
40Total
Bugs
4
Commits
40
Features
20
Lines of code
43,958
Activity Months9
Your Network
9 people
Work History
October 2025
4 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Focused on increasing cryptographic reliability and improving library usability for MPC workflows in the co-snarks repository. Key outcomes include targeted bug fixes to reduce panics in the Circom Ark compatibility layer and strengthened error handling for G2/G1 point deserialization/serialization, alongside data-handling and serialization enhancements that improve developer ergonomics and interoperability. These efforts reduce runtime risk, improve stability, and boost productivity for cryptographic tooling and MPC integrations.
4 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Focused on increasing cryptographic reliability and improving library usability for MPC workflows in the co-snarks repository. Key outcomes include targeted bug fixes to reduce panics in the Circom Ark compatibility layer and strengthened error handling for G2/G1 point deserialization/serialization, alongside data-handling and serialization enhancements that improve developer ergonomics and interoperability. These efforts reduce runtime risk, improve stability, and boost productivity for cryptographic tooling and MPC integrations.
October 2025
September 2025
3 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for TaceoLabs/co-snarks: This period focused on stabilizing and maintaining the codebase through targeted maintenance commits, policy updates, and a key refactor to improve long-term maintainability and security readiness. The work sets a solid foundation for upcoming features and reduces risk of regressions.
September 2025
3 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for TaceoLabs/co-snarks: This period focused on stabilizing and maintaining the codebase through targeted maintenance commits, policy updates, and a key refactor to improve long-term maintainability and security readiness. The work sets a solid foundation for upcoming features and reduces risk of regressions.
August 2025
7 Commits • 4 Features
Aug 1, 2025In August 2025, the co-snarks project delivered notable reliability, modularity, and cross-platform readiness improvements. Key outcomes include a fix to enforce witness variable counts in Groth16 proofs to prevent generation errors, modularization to support WebAssembly (WASM) by extracting witness and input parsing into dedicated crates, and an enhanced MPC-net examples suite with configurable feature flags and TLS (rustls) integration for QUIC-based networking. Additional gains were achieved through core input handling and network configuration improvements—deterministic participant ordering, batched input processing, and a streamlined public API with reduced generics—coupled with a license-compliance tightening to GPL-3.0-only. These changes reduce proof-time errors, enable easier WASM deployment, support secure, configurable network deployments, and improve maintainability and legal compliance across crates.
7 Commits • 4 Features
Aug 1, 2025In August 2025, the co-snarks project delivered notable reliability, modularity, and cross-platform readiness improvements. Key outcomes include a fix to enforce witness variable counts in Groth16 proofs to prevent generation errors, modularization to support WebAssembly (WASM) by extracting witness and input parsing into dedicated crates, and an enhanced MPC-net examples suite with configurable feature flags and TLS (rustls) integration for QUIC-based networking. Additional gains were achieved through core input handling and network configuration improvements—deterministic participant ordering, batched input processing, and a streamlined public API with reduced generics—coupled with a license-compliance tightening to GPL-3.0-only. These changes reduce proof-time errors, enable easier WASM deployment, support secure, configurable network deployments, and improve maintainability and legal compliance across crates.
August 2025
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for TaceoLabs/co-snarks: The month focused on stabilizing CI workflows, improving networking performance, and ensuring metadata accuracy. Key work included: 1) CI Token Injection to boost GitHub API access and CI reliability; 2) Networking abstractions and concurrency improvements, including extension traits for REP3 and Shamir networks and a refactor away from rayon toward std::thread::scope-based joins; 3) Repository URL/metadata correction in Cargo.toml to reflect the project rename. These initiatives delivered higher CI throughput, reduced API call restrictions, more maintainable networking code, and accurate project metadata. The work underscores a pragmatic blend of performance optimization, reliability, and maintainability with a focus on business value.
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for TaceoLabs/co-snarks: The month focused on stabilizing CI workflows, improving networking performance, and ensuring metadata accuracy. Key work included: 1) CI Token Injection to boost GitHub API access and CI reliability; 2) Networking abstractions and concurrency improvements, including extension traits for REP3 and Shamir networks and a refactor away from rayon toward std::thread::scope-based joins; 3) Repository URL/metadata correction in Cargo.toml to reflect the project rename. These initiatives delivered higher CI throughput, reduced API call restrictions, more maintainable networking code, and accurate project metadata. The work underscores a pragmatic blend of performance optimization, reliability, and maintainability with a focus on business value.
June 2025
3 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for TaceoLabs/co-snarks: Delivered a major refactor of the MPC networking layer and significant codebase modernization, enhancing modularity, maintainability, and build stability. Key architectural changes enable safer forks and easier future evolution of the MPC stack while preserving performance goals. The month also focused on code quality improvements and Rust language modernization to promote long-term reliability and faster iteration cycles.
3 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for TaceoLabs/co-snarks: Delivered a major refactor of the MPC networking layer and significant codebase modernization, enhancing modularity, maintainability, and build stability. Key architectural changes enable safer forks and easier future evolution of the MPC stack while preserving performance goals. The month also focused on code quality improvements and Rust language modernization to promote long-term reliability and faster iteration cycles.
June 2025
April 2025
8 Commits • 4 Features
Apr 1, 2025April 2025 monthly summary for TaceoLabs/co-snarks: Delivered serialization/deserialization support for Circom circuits, modularization/refactor of MPC and Circom components, Penumbra Groth16 testing enhancements, and documentation linting. These efforts improve circuit portability, system maintainability, and verification capabilities, aligning with business goals of reliable circuit deployment and robust testing.
April 2025
8 Commits • 4 Features
Apr 1, 2025April 2025 monthly summary for TaceoLabs/co-snarks: Delivered serialization/deserialization support for Circom circuits, modularization/refactor of MPC and Circom components, Penumbra Groth16 testing enhancements, and documentation linting. These efforts improve circuit portability, system maintainability, and verification capabilities, aligning with business goals of reliable circuit deployment and robust testing.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025: Strengthened performance measurement and expanded the co-snarks ecosystem. Implemented witness generation refactors and timing accuracy improvements, added coNoir integration with coCircom, and delivered documentation and onboarding enhancements. These changes improve measurement reliability, reduce runtime issues, and enable broader adoption of the toolchain.
4 Commits • 2 Features
Feb 1, 2025February 2025: Strengthened performance measurement and expanded the co-snarks ecosystem. Implemented witness generation refactors and timing accuracy improvements, added coNoir integration with coCircom, and delivered documentation and onboarding enhancements. These changes improve measurement reliability, reduce runtime issues, and enable broader adoption of the toolchain.
February 2025
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for TaceoLabs/co-snarks focused on usability, reliability, and observability improvements in the co-noir/co-circom ecosystem. Delivered library usability enhancements, introduced a typestate-based MPC workflow design, and standardized tracing across binaries to improve debugging and support. These changes reduce onboarding time and maintenance cost while enabling more robust MPC workflows.
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for TaceoLabs/co-snarks focused on usability, reliability, and observability improvements in the co-noir/co-circom ecosystem. Delivered library usability enhancements, introduced a typestate-based MPC workflow design, and standardized tracing across binaries to improve debugging and support. These changes reduce onboarding time and maintenance cost while enabling more robust MPC workflows.
December 2024
4 Commits • 2 Features
Dec 1, 2024December 2024 — Monthly summary for TaceoLabs/co-snarks Key features delivered: - Network capacity enhancement: Increased maximum frame length to 1 TB by configuring LengthDelimitedCodec with a 5-byte length, enabling larger data transmissions and improved throughput. (Commit f50ab33033b7a030345dadf32b6879fc74e2d53a) - Co-circom library API overhaul and input sharing refactor: Enforced rep3 input shares and disabled compression to improve security and predictability; added usability improvements and new usage examples. (Commits e760ec0c47f2432a137f1fa74e57d0c5bdbcf902; 576801192076a27c75cd07fe1ec62244700bb934) Major bugs fixed: - Network reliability: Fixed ignoring network write errors in Tokio tasks; errors are now logged at the error level to improve observability, debugging, and incident response. (Commit 0823a5ca0e851e609753b6c5134477ad530d0f3f) Overall impact and accomplishments: - Significantly improved observability, reliability, and data transfer capabilities; reduced debugging time for network-related issues; streamlined API surface for co-circom-snarks, enabling faster integrations and safer deployments. Technologies/skills demonstrated: - Rust, Tokio asynchronous runtime, LengthDelimitedCodec configuration, logging and observability practices, API design and breaking-change management, and usability improvements through examples. Business value: - Higher data throughput with reliable error reporting reduces production downtime and accelerates external integrations for partners using co-snarks, while API refinements lower the learning curve and maintenance costs for downstream users.
4 Commits • 2 Features
Dec 1, 2024December 2024 — Monthly summary for TaceoLabs/co-snarks Key features delivered: - Network capacity enhancement: Increased maximum frame length to 1 TB by configuring LengthDelimitedCodec with a 5-byte length, enabling larger data transmissions and improved throughput. (Commit f50ab33033b7a030345dadf32b6879fc74e2d53a) - Co-circom library API overhaul and input sharing refactor: Enforced rep3 input shares and disabled compression to improve security and predictability; added usability improvements and new usage examples. (Commits e760ec0c47f2432a137f1fa74e57d0c5bdbcf902; 576801192076a27c75cd07fe1ec62244700bb934) Major bugs fixed: - Network reliability: Fixed ignoring network write errors in Tokio tasks; errors are now logged at the error level to improve observability, debugging, and incident response. (Commit 0823a5ca0e851e609753b6c5134477ad530d0f3f) Overall impact and accomplishments: - Significantly improved observability, reliability, and data transfer capabilities; reduced debugging time for network-related issues; streamlined API surface for co-circom-snarks, enabling faster integrations and safer deployments. Technologies/skills demonstrated: - Rust, Tokio asynchronous runtime, LengthDelimitedCodec configuration, logging and observability practices, API design and breaking-change management, and usability improvements through examples. Business value: - Higher data throughput with reliable error reporting reduces production downtime and accelerates external integrations for partners using co-snarks, while API refinements lower the learning curve and maintenance costs for downstream users.
December 2024
Activity
Loading activity data...
Quality Metrics
Correctness92.6%
Maintainability92.8%
Architecture89.8%
Performance81.0%
AI Usage20.4%
Skills & Technologies
Programming Languages
JSONMarkdownPythonRustShellTOMLTypeScriptYAML
Technical Skills
API DesignAsynchronous ProgrammingBackend DevelopmentBuild SystemBuild SystemsCI/CDCLI DevelopmentCargoCircomCode ClarityCode FormattingCode LintingCode OrganizationCode RefactoringConcurrency
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline