JanDeDobbeleer/oh-my-posh
Jul 2024 – Feb 2026
20 Months active
Languages Used
GoJavaScriptYAMLJSONMarkdownPascalScriptPowerShellShell
Technical Skills
Gobackend developmentcachingcaching mechanismsBackend DevelopmentCI/CD
Jan De Dobbeleer
PROFILE
Jan De Dobbeleer
Jan De Dobbeleer engineered core features and infrastructure for the JanDeDobbeleer/oh-my-posh repository, focusing on performance, reliability, and user experience across terminal environments. He implemented advanced caching strategies, asynchronous initialization, and device-scoped segment caching to reduce latency and improve prompt rendering. Leveraging Go and Node.js, Jan modernized configuration management with gob-encoded live reloads, enhanced cross-shell compatibility, and introduced robust schema validation with comprehensive test coverage. His work included packaging improvements for Windows, AI-assisted changelog automation, and detailed logging for debugging. These contributions addressed runtime stability, streamlined upgrades, and enabled maintainable, extensible development for a diverse user base.
Overall Statistics
Feature vs Bugs
61%Features
Repository Contributions
469Total
Bugs
121
Commits
469
Features
188
Lines of code
68,850
Activity Months20
Your Network
64 people
Work History
February 2026
1 Commits
Feb 1, 2026February 2026: OH MY POSH Configuration Validator Schema Fix and test coverage enhancement. Key accomplishment: aligned validator to the correct JSON schema version and added comprehensive tests to ensure reliable config validation. This fix reduces misconfig errors, enhances cross-platform reliability, and strengthens CI signals. Committed as a8e7552d38ce6b415fb854453f79c1e56132c783.
1 Commits
Feb 1, 2026February 2026: OH MY POSH Configuration Validator Schema Fix and test coverage enhancement. Key accomplishment: aligned validator to the correct JSON schema version and added comprehensive tests to ensure reliable config validation. This fix reduces misconfig errors, enhances cross-platform reliability, and strengthens CI signals. Committed as a8e7552d38ce6b415fb854453f79c1e56132c783.
February 2026
January 2026
10 Commits • 4 Features
Jan 1, 2026January 2026 monthly summary for JanDeDobbeleer/oh-my-posh focused on performance optimization, reliability, and governance improvements. Delivered features and fixes that reduce latency, improve resource management, and streamline configuration and governance processes. The work emphasizes tangible business value through faster UX, stable runtimes, and clearer project governance.
January 2026
10 Commits • 4 Features
Jan 1, 2026January 2026 monthly summary for JanDeDobbeleer/oh-my-posh focused on performance optimization, reliability, and governance improvements. Delivered features and fixes that reduce latency, improve resource management, and streamline configuration and governance processes. The work emphasizes tangible business value through faster UX, stable runtimes, and clearer project governance.
December 2025
26 Commits • 14 Features
Dec 1, 2025December 2025 — Delivered substantive improvements to JanDeDobbeleer/oh-my-posh that enhance reliability, developer ergonomics, and end-user experience. Key work includes migrating properties to options with migration-safe behavior, augmenting language tooling with a default option and shared language_options schema, upgrading the build to Go 1.25.5, enabling headless font installation, and improving config error visibility. In addition, ongoing maintenance and documentation efforts supported stability and clarity across features and Claude-related updates.
26 Commits • 14 Features
Dec 1, 2025December 2025 — Delivered substantive improvements to JanDeDobbeleer/oh-my-posh that enhance reliability, developer ergonomics, and end-user experience. Key work includes migrating properties to options with migration-safe behavior, augmenting language tooling with a default option and shared language_options schema, upgrading the build to Go 1.25.5, enabling headless font installation, and improving config error visibility. In addition, ongoing maintenance and documentation efforts supported stability and clarity across features and Claude-related updates.
December 2025
November 2025
21 Commits • 9 Features
Nov 1, 2025Nov 2025 monthly summary for JanDeDobbeleer/oh-my-posh: Delivered packaging modernization, changelog automation, and reliability improvements that reduce release risk and accelerate ship cycles.
November 2025
21 Commits • 9 Features
Nov 1, 2025Nov 2025 monthly summary for JanDeDobbeleer/oh-my-posh: Delivered packaging modernization, changelog automation, and reliability improvements that reduce release risk and accelerate ship cycles.
October 2025
18 Commits • 7 Features
Oct 1, 2025October 2025 – Delivered cross-shell UX improvements, reliability hardening, and enhanced configurability for oh-my-posh. Major outcomes include: cross-shell prompt rendering enhancements across Fish and non-native prompts; mapping time format constants and improved logging; upgraded upgrade/versioning flow with force-upgrade handling and fresh version checks; AI-assisted changelog generation with improved contributor filtering and issue context; and configuration/debugging improvements with external config path support and enhanced merge semantics. These changes improved UX, reliability, and maintainability, enabling smoother upgrades, faster bug isolation, and more precise releases. Technologies demonstrated: Go time formats, structured logging, caching, configuration merging, shell integration, AI-assisted release tooling.
18 Commits • 7 Features
Oct 1, 2025October 2025 – Delivered cross-shell UX improvements, reliability hardening, and enhanced configurability for oh-my-posh. Major outcomes include: cross-shell prompt rendering enhancements across Fish and non-native prompts; mapping time format constants and improved logging; upgraded upgrade/versioning flow with force-upgrade handling and fresh version checks; AI-assisted changelog generation with improved contributor filtering and issue context; and configuration/debugging improvements with external config path support and enhanced merge semantics. These changes improved UX, reliability, and maintainability, enabling smoother upgrades, faster bug isolation, and more precise releases. Technologies demonstrated: Go time formats, structured logging, caching, configuration merging, shell integration, AI-assisted release tooling.
October 2025
September 2025
78 Commits • 25 Features
Sep 1, 2025September 2025 monthly summary for JanDeDobbeleer/oh-my-posh. Focused on delivering robust cache improvements, tooling upgrades, improved CLI usability, and stability fixes that drive performance, developer productivity, and end-user reliability.
September 2025
78 Commits • 25 Features
Sep 1, 2025September 2025 monthly summary for JanDeDobbeleer/oh-my-posh. Focused on delivering robust cache improvements, tooling upgrades, improved CLI usability, and stability fixes that drive performance, developer productivity, and end-user reliability.
August 2025
18 Commits • 7 Features
Aug 1, 2025August 2025 performance summary for JanDeDobbeleer/oh-my-posh: Delivered a suite of user-facing features, reliability improvements, and performance optimizations that enhance user experience, startup time, and maintainability. Key outcomes include per-user font deployment on Windows, enhanced CLI usability with a global --trace flag, modernized build tooling and runtime (Go 1.25), a cache subsystem overhaul with in-memory path caching and gob-encoded cache, and Gob-backed config with live reload for faster per-prompt config loading. Additional refactors to platform constants and Rust segment parsing improve stability and extensibility across toolchains.
18 Commits • 7 Features
Aug 1, 2025August 2025 performance summary for JanDeDobbeleer/oh-my-posh: Delivered a suite of user-facing features, reliability improvements, and performance optimizations that enhance user experience, startup time, and maintainability. Key outcomes include per-user font deployment on Windows, enhanced CLI usability with a global --trace flag, modernized build tooling and runtime (Go 1.25), a cache subsystem overhaul with in-memory path caching and gob-encoded cache, and Gob-backed config with live reload for faster per-prompt config loading. Additional refactors to platform constants and Rust segment parsing improve stability and extensibility across toolchains.
August 2025
July 2025
49 Commits • 21 Features
Jul 1, 2025July 2025 (2025-07) monthly summary for JanDeDobbeleer/oh-my-posh. Focused on delivering high-impact features, stabilizing core functionality, and accelerating developer productivity through performance optimizations and architecture improvements. Key business outcomes include faster startup, lower runtime allocations, more robust configuration handling, and an improved UX across rendering and theming, enabling easier adoption and maintainability.
July 2025
49 Commits • 21 Features
Jul 1, 2025July 2025 (2025-07) monthly summary for JanDeDobbeleer/oh-my-posh. Focused on delivering high-impact features, stabilizing core functionality, and accelerating developer productivity through performance optimizations and architecture improvements. Key business outcomes include faster startup, lower runtime allocations, more robust configuration handling, and an improved UX across rendering and theming, enabling easier adoption and maintainability.
June 2025
37 Commits • 19 Features
Jun 1, 2025June 2025 highlights for oh-my-posh (JanDeDobbeleer/oh-my-posh): focused on delivering business value through UX improvements, reliability, and packaging enhancements, while modernizing the codebase and upgrading tooling. Key outcomes include stability improvements (single-session initialization and selective rprompt caching), PowerShell scripting enhancements, UX/UI prompts/path refinements, enhanced configuration visibility, comprehensive preview capabilities, and a major packaging/maintenance push. These changes reduce runtime errors, speed up prompt rendering, improve configurability, and streamline developer workflow.
37 Commits • 19 Features
Jun 1, 2025June 2025 highlights for oh-my-posh (JanDeDobbeleer/oh-my-posh): focused on delivering business value through UX improvements, reliability, and packaging enhancements, while modernizing the codebase and upgrading tooling. Key outcomes include stability improvements (single-session initialization and selective rprompt caching), PowerShell scripting enhancements, UX/UI prompts/path refinements, enhanced configuration visibility, comprehensive preview capabilities, and a major packaging/maintenance push. These changes reduce runtime errors, speed up prompt rendering, improve configurability, and streamline developer workflow.
June 2025
May 2025
21 Commits • 6 Features
May 1, 20252025-05 Monthly Summary for JanDeDobbeleer/oh-my-posh: Focused on delivering impactful features, stabilizing core initialization across shells, and enhancing documentation and UX. Highlights include enabling project file overrides, introducing asynchronous initialization, and empowering release workflows with a manual trigger. Multiple fixes across Bash, PowerShell, Node toolchain detection, and init/path handling improved reliability and performance.
May 2025
21 Commits • 6 Features
May 1, 20252025-05 Monthly Summary for JanDeDobbeleer/oh-my-posh: Focused on delivering impactful features, stabilizing core initialization across shells, and enhancing documentation and UX. Highlights include enabling project file overrides, introducing asynchronous initialization, and empowering release workflows with a manual trigger. Multiple fixes across Bash, PowerShell, Node toolchain detection, and init/path handling improved reliability and performance.
April 2025
26 Commits • 14 Features
Apr 1, 2025April 2025 monthly summary for JanDeDobbeleer/oh-my-posh: Focused on stability, performance, and UX improvements across the core prompt engine and integrations. Key features delivered: Force rendering of segments; configurable order of subscription fetching; Docker display_mode files; alias functionality; ble.sh prompts support for Bash prompts; Dotnet SDK version fetch from global.json; script-based initialization; Bun runtime support. Major bugs fixed: YAML parsing enhancements (tag support and map properties); remove go-yaml dependency; do not use absolute paths for submodules; invert powerline on previous engine segment; rename shadow import; safeguard previous segment existence; add missing Docker fields to schema; do not query pyenv when PYENV_ROOT is empty; remove .Code to avoid conflicts; revert broken HTTP segment definition; relax upstream capture group. Overall impact: more stable rendering, deterministic startup, portable builds, and a stronger foundation for future performance/UX work. Technologies demonstrated: Go, YAML handling, strings.SplitSeq performance optimization, Docker integration, Bash/ble.sh prompts, dotnet global.json alignment, Bun runtime support, scripting-based init, and Git hygiene.
26 Commits • 14 Features
Apr 1, 2025April 2025 monthly summary for JanDeDobbeleer/oh-my-posh: Focused on stability, performance, and UX improvements across the core prompt engine and integrations. Key features delivered: Force rendering of segments; configurable order of subscription fetching; Docker display_mode files; alias functionality; ble.sh prompts support for Bash prompts; Dotnet SDK version fetch from global.json; script-based initialization; Bun runtime support. Major bugs fixed: YAML parsing enhancements (tag support and map properties); remove go-yaml dependency; do not use absolute paths for submodules; invert powerline on previous engine segment; rename shadow import; safeguard previous segment existence; add missing Docker fields to schema; do not query pyenv when PYENV_ROOT is empty; remove .Code to avoid conflicts; revert broken HTTP segment definition; relax upstream capture group. Overall impact: more stable rendering, deterministic startup, portable builds, and a stronger foundation for future performance/UX work. Technologies demonstrated: Go, YAML handling, strings.SplitSeq performance optimization, Docker integration, Bash/ble.sh prompts, dotnet global.json alignment, Bun runtime support, scripting-based init, and Git hygiene.
April 2025
March 2025
34 Commits • 16 Features
Mar 1, 2025March 2025 performance summary for JanDeDobbeleer/oh-my-posh focused on stabilizing the Init flow, expanding cross‑platform support, and improving rendering performance and observability across core modules. Key outcomes include stabilizing Init startup by ensuring Init flag is set during initialization, adding logging to the Init process for faster troubleshooting, and removing an unnecessary Get-PoshThemes call to boost Init efficiency. Platform expansion now includes Kali Linux support in the OS module, broadening compatibility for customers on diverse Linux distributions. Rendering and processing reliability improved in the template path and data handling: performance optimizations avoid unnecessary map transformations, and template knownFields access now uses a standard sync.Map with proper synchronization, reducing race conditions and errors in templates. Overall, these changes reduce startup risk, improve developer and operator visibility, and deliver a smoother, more robust user experience across platforms. Deliverables reference commits across the month include fixes and enhancements such as: - fix(init): set Init flag (d533518d070d7008ae9ba9c5ea5e9e1a95f5dde7) - chore(init): add logging (77bb8f7ed40d8c086c4a1f53d9475bb3425a7d69) - chore(pwsh): remove Get-PoshThemes for init efficiency (242861f9a3d759c4344320d21cbe4bb76ab8ba8a) - feat(os): add kali linux (9e10600936e2cb177a9bd56d894e06b134d1f3ce) - perf(template): do not transform map to access key (20742ccdfaaa435fb8378ff7370ac70a8701f55d) - fix(template): use standard sync.Map for knownFields (ff3222427d2c032c94e9458f97458ce3f4118c97) - fix(template): use mutex to access fields (a6e675499ef3c291f3d136def4ca69667371ceb7)
March 2025
34 Commits • 16 Features
Mar 1, 2025March 2025 performance summary for JanDeDobbeleer/oh-my-posh focused on stabilizing the Init flow, expanding cross‑platform support, and improving rendering performance and observability across core modules. Key outcomes include stabilizing Init startup by ensuring Init flag is set during initialization, adding logging to the Init process for faster troubleshooting, and removing an unnecessary Get-PoshThemes call to boost Init efficiency. Platform expansion now includes Kali Linux support in the OS module, broadening compatibility for customers on diverse Linux distributions. Rendering and processing reliability improved in the template path and data handling: performance optimizations avoid unnecessary map transformations, and template knownFields access now uses a standard sync.Map with proper synchronization, reducing race conditions and errors in templates. Overall, these changes reduce startup risk, improve developer and operator visibility, and deliver a smoother, more robust user experience across platforms. Deliverables reference commits across the month include fixes and enhancements such as: - fix(init): set Init flag (d533518d070d7008ae9ba9c5ea5e9e1a95f5dde7) - chore(init): add logging (77bb8f7ed40d8c086c4a1f53d9475bb3425a7d69) - chore(pwsh): remove Get-PoshThemes for init efficiency (242861f9a3d759c4344320d21cbe4bb76ab8ba8a) - feat(os): add kali linux (9e10600936e2cb177a9bd56d894e06b134d1f3ce) - perf(template): do not transform map to access key (20742ccdfaaa435fb8378ff7370ac70a8701f55d) - fix(template): use standard sync.Map for knownFields (ff3222427d2c032c94e9458f97458ce3f4118c97) - fix(template): use mutex to access fields (a6e675499ef3c291f3d136def4ca69667371ceb7)
February 2025
8 Commits • 5 Features
Feb 1, 2025February 2025 monthly summary for JanDeDobbeleer/oh-my-posh focusing on reliability, developer experience, and maintainability. Delivered core features to reduce runtime hangs, standardized Git segment display, enhanced error handling and testing for safer operations, and modernized docs and dependencies. Also improved template system scaffolding for faster rendering and future enhancements. These efforts collectively improved product stability, reduced debugging time, and lowered maintenance overhead while supporting faster feature delivery.
8 Commits • 5 Features
Feb 1, 2025February 2025 monthly summary for JanDeDobbeleer/oh-my-posh focusing on reliability, developer experience, and maintainability. Delivered core features to reduce runtime hangs, standardized Git segment display, enhanced error handling and testing for safer operations, and modernized docs and dependencies. Also improved template system scaffolding for faster rendering and future enhancements. These efforts collectively improved product stability, reduced debugging time, and lowered maintenance overhead while supporting faster feature delivery.
February 2025
January 2025
8 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for JanDeDobbeleer/oh-my-posh. Three feature clusters delivered: 1) Oh-my-posh user experience improvements with UI/UX polish and stability for terminal rendering (prompts, event styling, icon spacing, color handling). 2) Upgrade stability and CLI behavior enhancements (deferring upgrade checks until cache expiry; adjust completions default behavior). 3) Documentation and Dependency Updates to align schema version and security improvements. Notable fixes include: Python prompt hijacking disabled by default; trailing spaces removed for remote icons; avoid printing transparent foreground; upgrade checks only run when cache expires; completions disabled. These changes improve end-user experience, reduce noise in upgrade prompts, and strengthen security by keeping dependencies current.
January 2025
8 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for JanDeDobbeleer/oh-my-posh. Three feature clusters delivered: 1) Oh-my-posh user experience improvements with UI/UX polish and stability for terminal rendering (prompts, event styling, icon spacing, color handling). 2) Upgrade stability and CLI behavior enhancements (deferring upgrade checks until cache expiry; adjust completions default behavior). 3) Documentation and Dependency Updates to align schema version and security improvements. Notable fixes include: Python prompt hijacking disabled by default; trailing spaces removed for remote icons; avoid printing transparent foreground; upgrade checks only run when cache expires; completions disabled. These changes improve end-user experience, reduce noise in upgrade prompts, and strengthen security by keeping dependencies current.
December 2024
19 Commits • 6 Features
Dec 1, 2024December 2024 performance summary for JanDeDobbeleer/oh-my-posh. Delivered core features, improved packaging reliability, enhanced observability, expanded font management, and refined Git/status reporting, driving user value and stability. Key outcomes include a configurable upgrade flow, more reliable Windows installer packaging, improved CLI usability, robust font handling with caching, and prevention of cache race conditions.
19 Commits • 6 Features
Dec 1, 2024December 2024 performance summary for JanDeDobbeleer/oh-my-posh. Delivered core features, improved packaging reliability, enhanced observability, expanded font management, and refined Git/status reporting, driving user value and stability. Key outcomes include a configurable upgrade flow, more reliable Windows installer packaging, improved CLI usability, robust font handling with caching, and prevention of cache race conditions.
December 2024
November 2024
70 Commits • 21 Features
Nov 1, 2024November 2024 (2024-11) focused on stabilizing the OH MY POSH rendering pipeline, expanding configuration-driven capabilities, and strengthening release readiness. Key features were delivered to improve configurability and architecture, while a set of high-impact bugs were fixed to enhance reliability and performance. The combined results improve business value through more robust rendering, faster onboarding, and streamlined deployment. Overall impact: increased stability of prompts and caching, improved documentation and observability, and stronger alignment with release pipelines (MSI packaging, CDN release assets, and signing).
November 2024
70 Commits • 21 Features
Nov 1, 2024November 2024 (2024-11) focused on stabilizing the OH MY POSH rendering pipeline, expanding configuration-driven capabilities, and strengthening release readiness. Key features were delivered to improve configurability and architecture, while a set of high-impact bugs were fixed to enhance reliability and performance. The combined results improve business value through more robust rendering, faster onboarding, and streamlined deployment. Overall impact: increased stability of prompts and caching, improved documentation and observability, and stronger alignment with release pipelines (MSI packaging, CDN release assets, and signing).
October 2024
7 Commits • 3 Features
Oct 1, 2024October 2024 monthly performance summary for JanDeDobbeleer/oh-my-posh: Architectural refactors, configuration maturity, performance improvements, and a Windows path resolution fix. Delivered measurable business value through faster startup, improved reliability, and easier future maintenance.
7 Commits • 3 Features
Oct 1, 2024October 2024 monthly performance summary for JanDeDobbeleer/oh-my-posh: Architectural refactors, configuration maturity, performance improvements, and a Windows path resolution fix. Delivered measurable business value through faster startup, improved reliability, and easier future maintenance.
October 2024
September 2024
3 Commits • 2 Features
Sep 1, 2024September 2024 — Key deliverables for JanDeDobbeleer/oh-my-posh focused on UX simplification and runtime performance. Delivered Upgrade Notices Configuration to replace deprecated disable_notice with upgrade_notice, defaulting to enabled to reduce user friction during upgrades. Implemented Segment Caching to minimize data fetches and speed up prompt rendering; introduced cache duration and strategy options (folder or session). Performed code cleanup by removing unused cache_timeout references across segments to improve maintainability. No customer-facing bug fixes were required this month; efforts prioritized reliability, performance, and a cleaner codebase. The changes improve operational efficiency, reduce noise for users during upgrades, and provide a foundation for future performance tuning.
September 2024
3 Commits • 2 Features
Sep 1, 2024September 2024 — Key deliverables for JanDeDobbeleer/oh-my-posh focused on UX simplification and runtime performance. Delivered Upgrade Notices Configuration to replace deprecated disable_notice with upgrade_notice, defaulting to enabled to reduce user friction during upgrades. Implemented Segment Caching to minimize data fetches and speed up prompt rendering; introduced cache duration and strategy options (folder or session). Performed code cleanup by removing unused cache_timeout references across segments to improve maintainability. No customer-facing bug fixes were required this month; efforts prioritized reliability, performance, and a cleaner codebase. The changes improve operational efficiency, reduce noise for users during upgrades, and provide a foundation for future performance tuning.
August 2024
13 Commits • 5 Features
Aug 1, 2024Month: 2024-08. Repository: JanDeDobbeleer/oh-my-posh. Focus: performance, reliability, and maintainability improvements across the template rendering and block rendering pipeline, plus code quality and Git hygiene. Key features delivered include performance-oriented enhancements to template rendering (caching, pools) and env-var cleanup, sequential segment text rendering for reliability, block rendering configuration simplification (removing OSC99 and offset settings), a silent mode for benchmark outputs to reduce noise, and a broad set of code refinements for readability and performance.
13 Commits • 5 Features
Aug 1, 2024Month: 2024-08. Repository: JanDeDobbeleer/oh-my-posh. Focus: performance, reliability, and maintainability improvements across the template rendering and block rendering pipeline, plus code quality and Git hygiene. Key features delivered include performance-oriented enhancements to template rendering (caching, pools) and env-var cleanup, sequential segment text rendering for reliability, block rendering configuration simplification (removing OSC99 and offset settings), a silent mode for benchmark outputs to reduce noise, and a broad set of code refinements for readability and performance.
August 2024
July 2024
2 Commits • 1 Features
Jul 1, 2024July 2024 performance summary for JanDeDobbeleer/oh-my-posh. Delivered a significant caching system enhancement focused on performance, maintainability, and scalability. Implemented segment-level caching and a generalized duration-based caching system with a new Duration type, replacing hardcoded TTL values with string-based durations. Also removed segment-specific caching to unify the caching strategy, reducing complexity and future maintenance. These changes improve runtime responsiveness of segment rendering and set the foundation for configurable cache policies across the project.
July 2024
2 Commits • 1 Features
Jul 1, 2024July 2024 performance summary for JanDeDobbeleer/oh-my-posh. Delivered a significant caching system enhancement focused on performance, maintainability, and scalability. Implemented segment-level caching and a generalized duration-based caching system with a new Duration type, replacing hardcoded TTL values with string-based durations. Also removed segment-specific caching to unify the caching strategy, reducing complexity and future maintenance. These changes improve runtime responsiveness of segment rendering and set the foundation for configurable cache policies across the project.
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Quality Metrics
Correctness92.8%
Maintainability92.6%
Architecture90.2%
Performance90.0%
AI Usage23.2%
Skills & Technologies
Programming Languages
BashCCSSElvishFishGoHTMLJSONJavaScriptLua
Technical Skills
AI IntegrationAI Prompt EngineeringAI integrationAPI DevelopmentAPI IntegrationAPI developmentAsynchronous ProgrammingAuthenticationAutomationAzureAzure CLIBackend DevelopmentBash ConfigurationBest PracticesBit Manipulation
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