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Michał Kotowski

PROFILE

Michał Kotowski

Worked on the charmbracelet/sequin and charmbracelet/x repositories, focusing on terminal emulation, color handling, and asset management using Go. Delivered enhancements to sequin’s terminal rendering engine by improving control character processing, expanding ECMA-48 sequence support, and refining SGR color rendering with accurate ANSI, ANSI256, and 24-bit RGB detection. Addressed input reliability by fixing ESC character handling across terminal modes and reduced log noise through improved error management. In charmbracelet/x, stabilized asset handling by resolving LFS issues for binary assets, ensuring reliable CI/CD workflows. Emphasized maintainability, traceability, and comprehensive testing throughout, strengthening both user experience and downstream collaboration.

Overall Statistics

Feature vs Bugs

40%Features

Repository Contributions

6Total
Bugs
3
Commits
6
Features
2
Lines of code
262
Activity Months3

Work History

March 2025

1 Commits

Mar 1, 2025

March 2025: Focused on stabilizing the asset pipeline for charmbracelet/x by fixing LFS handling for JigokudaniMonkeyPark.png. No new features delivered this month; main gains were reliability and reduced asset-related risks, enabling smoother downstream deployments and asset management integrity.

December 2024

4 Commits • 2 Features

Dec 1, 2024

December 2024 monthly summary: Delivered key enhancements to the sequin terminal rendering engine. Implemented enhanced control character handling and ECMA-48 sequence support (including PM/SOS), refined labels and hex displays, and expanded tests for end-to-end correctness. Improved SGR color rendering with accurate ANSI/ANSI256/24-bit RGB detection, hex value exposure, and resolved runtime errors, with updated test data. Fixed a duplicate error message output by relying on Cobra for standardized error handling, reducing log noise. Overall, these changes strengthen terminal emulation fidelity, reduce debugging time, and improve developer and user experience.

November 2024

1 Commits

Nov 1, 2024

November 2024 monthly summary for charmbracelet/sequin: Focused on reliability improvements in terminal input processing with a targeted fix to ESC handling across raw and non-raw modes. Delivered a low-risk, well-traced change to align behavior with user expectations and terminal semantics.

Activity

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Quality Metrics

Correctness93.4%
Maintainability93.4%
Architecture93.4%
Performance93.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

Go

Technical Skills

ANSI Escape CodesBug FixBug FixingCLI DevelopmentColor HandlingControl Character HandlingECMA-48Go DevelopmentGo ProgrammingTerminal EmulationTesting

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

charmbracelet/sequin

Nov 2024 Dec 2024
2 Months active

Languages Used

Go

Technical Skills

Bug FixingTerminal EmulationANSI Escape CodesBug FixCLI DevelopmentColor Handling

charmbracelet/x

Mar 2025 Mar 2025
1 Month active

Languages Used

No languages

Technical Skills

No skills