Eppo-exp/eppo-docs
Mar 2025 – Jan 2026
8 Months active
Languages Used
GoMarkdownPHP
Technical Skills
DocumentationGoPHPdocumentationdata analysisexperimental design
Bertil Hatt
PROFILE
Bertil Hatt
Over eight months, Bertil enhanced the Eppo-exp/eppo-docs repository by delivering seven features and resolving two bugs, focusing on documentation clarity, onboarding, and security. He improved SDK documentation for Go and PHP, clarified metric certification and experimental design guidance, and simplified BigQuery event logging setup. Bertil applied technical writing, Go, PHP, and data analysis skills to align documentation with evolving product capabilities, reducing user confusion and support overhead. His work included implementing access control features for team management and refining statistical analysis documentation, demonstrating depth in both technical accuracy and governance. These contributions strengthened maintainability and supported scalable, secure adoption.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
10Total
Bugs
2
Commits
10
Features
7
Lines of code
153
Activity Months8
Your Network
42 people
Work History
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 — Eppo-exp/eppo-docs: Implemented Team Membership Lockdown to strengthen security and governance for sensitive projects. This feature restricts team membership modifications to Admins and existing members, reducing the risk of unauthorized access. Commit 240985b2d72e374e57792bebd80230cc0f46a46a: 'Locked teams (#713)'. No major bugs fixed this month; focus was on secure-by-default access controls and documentation alignment. Impact: improved security posture, clearer ownership, and scalable governance patterns across teams. Technologies/skills demonstrated: access control design, Git-based collaboration, security-focused development, cross-functional coordination with docs team.
1 Commits • 1 Features
Jan 1, 2026January 2026 — Eppo-exp/eppo-docs: Implemented Team Membership Lockdown to strengthen security and governance for sensitive projects. This feature restricts team membership modifications to Admins and existing members, reducing the risk of unauthorized access. Commit 240985b2d72e374e57792bebd80230cc0f46a46a: 'Locked teams (#713)'. No major bugs fixed this month; focus was on secure-by-default access controls and documentation alignment. Impact: improved security posture, clearer ownership, and scalable governance patterns across teams. Technologies/skills demonstrated: access control design, Git-based collaboration, security-focused development, cross-functional coordination with docs team.
January 2026
December 2025
2 Commits • 1 Features
Dec 1, 2025Month 2025-12: Major bugs fixed: none reported. Key feature delivered: CUPED Documentation and Guidance in Eppo-exp/eppo-docs, including a CUPED significance guide and clarifications on which metrics cannot be CUPED covariates to prevent misuse. Implemented via two commits: f679521d1c38daf21717d851a43042476c499892; beb52ecf8646a613eb4ae664373d4397b8dfe422. Impact: reduces noise in experiments, improves guidance for experimental design, and accelerates adoption of best practices. Technologies/skills demonstrated: technical writing, documentation standards, version control discipline, cross-repo collaboration.
December 2025
2 Commits • 1 Features
Dec 1, 2025Month 2025-12: Major bugs fixed: none reported. Key feature delivered: CUPED Documentation and Guidance in Eppo-exp/eppo-docs, including a CUPED significance guide and clarifications on which metrics cannot be CUPED covariates to prevent misuse. Implemented via two commits: f679521d1c38daf21717d851a43042476c499892; beb52ecf8646a613eb4ae664373d4397b8dfe422. Impact: reduces noise in experiments, improves guidance for experimental design, and accelerates adoption of best practices. Technologies/skills demonstrated: technical writing, documentation standards, version control discipline, cross-repo collaboration.
November 2025
1 Commits • 1 Features
Nov 1, 20252025-11 monthly summary for Eppo-exp/eppo-docs focusing on delivering clear PHP SDK documentation and onboarding improvements. Key feature delivered: PHP SDK Documentation Clarity Improvement achieved by reordering arguments in the PHP SDK documentation to enhance clarity and correctness in usage examples. Implemented via commit d2e840f902cd6423ccf5d9b26b07a8ac52a92daf (Argument order flipped in PHD SDK intro (#706)). No major bugs fixed in this repo this month. Impact: Reduces potential misusage, shortens onboarding time for PHP SDK users, and is expected to lower routine support tickets by clarifying the interface. Strengthens documentation quality and consistency with the current SDK interface. Technologies/skills demonstrated: documentation refactoring, content clarity, version control (Git commits), cross-team collaboration between docs and SDK teams, and adherence to documentation standards.
1 Commits • 1 Features
Nov 1, 20252025-11 monthly summary for Eppo-exp/eppo-docs focusing on delivering clear PHP SDK documentation and onboarding improvements. Key feature delivered: PHP SDK Documentation Clarity Improvement achieved by reordering arguments in the PHP SDK documentation to enhance clarity and correctness in usage examples. Implemented via commit d2e840f902cd6423ccf5d9b26b07a8ac52a92daf (Argument order flipped in PHD SDK intro (#706)). No major bugs fixed in this repo this month. Impact: Reduces potential misusage, shortens onboarding time for PHP SDK users, and is expected to lower routine support tickets by clarifying the interface. Strengthens documentation quality and consistency with the current SDK interface. Technologies/skills demonstrated: documentation refactoring, content clarity, version control (Git commits), cross-team collaboration between docs and SDK teams, and adherence to documentation standards.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for Eppo-exp/eppo-docs focusing on features delivered and bugs fixed, with emphasis on business value and technical achievements.
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for Eppo-exp/eppo-docs focusing on features delivered and bugs fixed, with emphasis on business value and technical achievements.
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 - Eppo-docs: Interaction Detection Documentation Clarification. Clarified that interaction detection supports only simple metrics (no ratio metrics) and updated user guidance accordingly. Commit 8157b2bbf5992daed0fe0a8c412e9a021442a988 (#697) documents this change. No major bug fixes; primary deliverable was improving documentation accuracy to align product messaging with current capabilities. Impact: reduced user confusion, smoother onboarding, and fewer support inquiries. Skills demonstrated: documentation best practices, commit hygiene, traceability to issues, and cross-repo collaboration.
1 Commits • 1 Features
Sep 1, 2025September 2025 - Eppo-docs: Interaction Detection Documentation Clarification. Clarified that interaction detection supports only simple metrics (no ratio metrics) and updated user guidance accordingly. Commit 8157b2bbf5992daed0fe0a8c412e9a021442a988 (#697) documents this change. No major bug fixes; primary deliverable was improving documentation accuracy to align product messaging with current capabilities. Impact: reduced user confusion, smoother onboarding, and fewer support inquiries. Skills demonstrated: documentation best practices, commit hygiene, traceability to issues, and cross-repo collaboration.
September 2025
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered BigQuery event logging setup simplification in Eppo-docs by removing the optional Storage Admin role requirement and updating the BigQuery connection workflow in the docs. This reduces onboarding time and permission friction for data warehousing integration. All changes are captured in commit 52d1529160c86b9ce100f3b7cf1d6d87efed4c1e. No major bugs fixed this month; focus was on documentation and setup reliability.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered BigQuery event logging setup simplification in Eppo-docs by removing the optional Storage Admin role requirement and updating the BigQuery connection workflow in the docs. This reduces onboarding time and permission friction for data warehousing integration. All changes are captured in commit 52d1529160c86b9ce100f3b7cf1d6d87efed4c1e. No major bugs fixed this month; focus was on documentation and setup reliability.
May 2025
1 Commits • 1 Features
May 1, 20252025-05 Monthly Summary Key features delivered: - Documentation update clarifying metric certification rules: funnel metrics cannot be certified; added explicit guidance in certified-metrics.md specifying that only simple, ratio, and percentile metrics are eligible for certification. Major bugs fixed: - No major bugs fixed in this repository for the month (none reported). Overall impact and accomplishments: - Improved clarity and consistency in product documentation, reducing user confusion around metric certification and supporting better onboarding and self-service decision-making. - Strengthened alignment between product capabilities and customer-facing docs, enabling teams to scale certification guidance with confidence. Technologies/skills demonstrated: - Technical writing and docs governance; knowledge of metric certification rules; version control discipline with traceable commits (e.g., 9290489502e43a2fe9242695787273f4ba0bc1c3). Business value: - Clear certification guidance reduces support inquiries, accelerates customer adoption, and enhances trust in Eppo documentation.
1 Commits • 1 Features
May 1, 20252025-05 Monthly Summary Key features delivered: - Documentation update clarifying metric certification rules: funnel metrics cannot be certified; added explicit guidance in certified-metrics.md specifying that only simple, ratio, and percentile metrics are eligible for certification. Major bugs fixed: - No major bugs fixed in this repository for the month (none reported). Overall impact and accomplishments: - Improved clarity and consistency in product documentation, reducing user confusion around metric certification and supporting better onboarding and self-service decision-making. - Strengthened alignment between product capabilities and customer-facing docs, enabling teams to scale certification guidance with confidence. Technologies/skills demonstrated: - Technical writing and docs governance; knowledge of metric certification rules; version control discipline with traceable commits (e.g., 9290489502e43a2fe9242695787273f4ba0bc1c3). Business value: - Clear certification guidance reduces support inquiries, accelerates customer adoption, and enhances trust in Eppo documentation.
May 2025
March 2025
2 Commits
Mar 1, 2025March 2025 — Eppo-docs documentation improvements focused on accuracy and accessibility for Python and Go SDK users. Delivered two targeted bug fixes in the docs: one correcting the Python contextual bandits hyperlink and another fixing an import path typo in the Go SDK Quickstart. These changes streamline developer onboarding, reduce confusion, and strengthen documentation quality across languages.
March 2025
2 Commits
Mar 1, 2025March 2025 — Eppo-docs documentation improvements focused on accuracy and accessibility for Python and Go SDK users. Delivered two targeted bug fixes in the docs: one correcting the Python contextual bandits hyperlink and another fixing an import path typo in the Go SDK Quickstart. These changes streamline developer onboarding, reduce confusion, and strengthen documentation quality across languages.
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
GoMarkdownPHP
Technical Skills
DocumentationGoPHPdata analysisdocumentationexperimental designstatistical analysisstatisticsteam management
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