
Wojciech Szymczyk engineered robust developer tooling and performance enhancements across the foundry-rs/starknet-foundry and software-mansion/scarb repositories, focusing on automation, gas tracking, and profiling. He automated release packaging and dependency management using Rust and GitHub Actions, streamlining the Foundry ecosystem’s release process. In starknet-foundry, he introduced Sierra gas resource tracking and improved L2 gas estimation by extending trace data structures and updating Cairo dependencies. For scarb, he embedded formatting and linting checks into CI workflows and delivered Cairo-profiler trace data generation, modernizing performance diagnostics. His work demonstrated depth in CI/CD, Cairo, and Rust, emphasizing maintainability, reliability, and developer productivity.

2025-10 Monthly Summary: Focused on performance instrumentation and tooling modernization. Delivered Cairo-profiler trace data generation in Scarb with new --save-profiler-trace-data flag to capture and save detailed execution traces for performance analysis, and upgraded the Cairo Language Server to 2.13.x across Cairols (2.13.0 and 2.13.1) with corresponding Cargo.toml/Cargo.lock updates. No major bug fixes documented this month; maintenance prioritized reliability and compatibility. These changes strengthen performance diagnostics, accelerate issue diagnosis, and keep Cairo tooling current, boosting developer productivity and system stability.
2025-10 Monthly Summary: Focused on performance instrumentation and tooling modernization. Delivered Cairo-profiler trace data generation in Scarb with new --save-profiler-trace-data flag to capture and save detailed execution traces for performance analysis, and upgraded the Cairo Language Server to 2.13.x across Cairols (2.13.0 and 2.13.1) with corresponding Cargo.toml/Cargo.lock updates. No major bug fixes documented this month; maintenance prioritized reliability and compatibility. These changes strengthen performance diagnostics, accelerate issue diagnosis, and keep Cairo tooling current, boosting developer productivity and system stability.
September 2025 monthly summary for software-mansion/scarb: Focused on improving CI quality and automation by embedding formatting and linting checks into the rust-toolchain action, delivering sustained code quality improvements and faster feedback loops.
September 2025 monthly summary for software-mansion/scarb: Focused on improving CI quality and automation by embedding formatting and linting checks into the rust-toolchain action, delivering sustained code quality improvements and faster feedback loops.
Monthly summary for 2025-08 (foundry-rs/starknet-foundry). Delivered profiler and trace-file enhancements to improve L2 gas estimation fidelity. This included updating dependencies to cairo-annotations and cairo; extending the trace file with calldata length information for function calls; and adding event summaries and signature lengths with updated data structures to support execution tracing. While there were no explicit bug fixes tracked this month, the changes address traceability gaps and estimation error, enabling more accurate cost modeling, faster debugging, and better performance analytics. Business impact: more accurate gas estimation, improved debugging and performance visibility, and foundational improvements for future optimizations.
Monthly summary for 2025-08 (foundry-rs/starknet-foundry). Delivered profiler and trace-file enhancements to improve L2 gas estimation fidelity. This included updating dependencies to cairo-annotations and cairo; extending the trace file with calldata length information for function calls; and adding event summaries and signature lengths with updated data structures to support execution tracing. While there were no explicit bug fixes tracked this month, the changes address traceability gaps and estimation error, enabling more accurate cost modeling, faster debugging, and better performance analytics. Business impact: more accurate gas estimation, improved debugging and performance visibility, and foundational improvements for future optimizations.
March 2025 performance summary for foundry-rs/starknet-foundry: Core focus on enabling accurate Sierra gas resource tracking and ensuring Scarb 2.x compatibility, with CI/test updates and documentation to enable reliable gas accounting across Cairo steps. Delivered end-to-end Sierra gas visibility and improved reporting readiness for production deployments.
March 2025 performance summary for foundry-rs/starknet-foundry: Core focus on enabling accurate Sierra gas resource tracking and ensuring Scarb 2.x compatibility, with CI/test updates and documentation to enable reliable gas accounting across Cairo steps. Delivered end-to-end Sierra gas visibility and improved reporting readiness for production deployments.
2024-11 Monthly Summary for foundry-rs/starknet-foundry. Focused on delivering automated release packaging and robust dependency management to streamline releases and improve packaging reliability across the Foundry ecosystem.
2024-11 Monthly Summary for foundry-rs/starknet-foundry. Focused on delivering automated release packaging and robust dependency management to streamline releases and improve packaging reliability across the Foundry ecosystem.
Overview of all repositories you've contributed to across your timeline