kivitendo/kivitendo-erp
Jun 2024 – Jul 2026
17 Months active
Languages Used
PerlHTMLSQLDocumentationTextCSSLESSYAML
Technical Skills
Perlbackend developmentAPI integrationerror handlingBackend DevelopmentDatabase Management
Cem Aydin
PROFILE
Cem Aydin
Over 17 months, contributed to the kivitendo-erp repository by delivering features and fixes that improved backend reliability, frontend usability, and developer documentation. Work included implementing cross-platform filename sanitization, QR-IBAN support for Swiss banking, and UI/UX enhancements such as responsive layouts and theming with CSS, LESS, and HTML templating. Addressed asset pipeline stability by correcting file permissions and maintained robust documentation to streamline onboarding and reduce support queries. Used Perl and SQL for backend changes, while frontend improvements focused on maintainable CSS and dynamic layouts. Demonstrated attention to data integrity, accessibility, and maintainability across both user-facing and developer-facing workflows.
Overall Statistics
Feature vs Bugs
58%Features
Repository Contributions
34Total
Bugs
11
Commits
34
Features
15
Lines of code
923
Activity Months17
Your Network
72 peopleSame Organization
@gmx.ch51
Shared Repositories
21
Work History
July 2026
1 Commits
Jul 1, 2026Month: 2026-07. Focused on documentation quality and maintainability for kivitendo/kivitendo-erp. No new features deployed this month; main effort was correcting a typographical error in the Apache configuration documentation to improve clarity for users configuring the server. This work reduces misconfigurations and support queries, and enhances onboarding for new admins.
1 Commits
Jul 1, 2026Month: 2026-07. Focused on documentation quality and maintainability for kivitendo/kivitendo-erp. No new features deployed this month; main effort was correcting a typographical error in the Apache configuration documentation to improve clarity for users configuring the server. This work reduces misconfigurations and support queries, and enhances onboarding for new admins.
July 2026
June 2026
2 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for kivitendo/kivitendo-erp. Focused on delivering user-visible UI improvements and maintaining excellent documentation to support faster onboarding and consistency across the main menu and layout behavior.
June 2026
2 Commits • 1 Features
Jun 1, 2026June 2026 monthly summary for kivitendo/kivitendo-erp. Focused on delivering user-visible UI improvements and maintaining excellent documentation to support faster onboarding and consistency across the main menu and layout behavior.
May 2026
1 Commits
May 1, 2026May 2026 monthly summary for kivitendo/kivitendo-erp: Key focus on login usability and autofill reliability for KeepassXC. Delivered a targeted fix by renaming the login input id from 'auth_login' to 'username', resolving autofill misclassification and restoring smooth user login. This change is low-risk (the old id was unused) and removes a known friction point for users relying on password managers. The fix is captured in commit 10d2a0a2a58f5fa9cec6ac06b703b5ef661006d0 and tied to issue #780. Overall impact: improved user productivity, reduced support burden, and a more robust login experience. Technologies/skills demonstrated: DOM/HTML field naming adjustments, regression-safe refactor, commit hygiene, and issue-tracking integration.
1 Commits
May 1, 2026May 2026 monthly summary for kivitendo/kivitendo-erp: Key focus on login usability and autofill reliability for KeepassXC. Delivered a targeted fix by renaming the login input id from 'auth_login' to 'username', resolving autofill misclassification and restoring smooth user login. This change is low-risk (the old id was unused) and removes a known friction point for users relying on password managers. The fix is captured in commit 10d2a0a2a58f5fa9cec6ac06b703b5ef661006d0 and tied to issue #780. Overall impact: improved user productivity, reduced support burden, and a more robust login experience. Technologies/skills demonstrated: DOM/HTML field naming adjustments, regression-safe refactor, commit hygiene, and issue-tracking integration.
May 2026
December 2025
3 Commits • 2 Features
Dec 1, 2025December 2025 focused on delivering developer-facing improvements to kivitendo-erp. Key outputs include a Design 4.0 Documentation Update and updated LESS tooling/minification guidance to address deprecations, improving build reliability and developer productivity. These changes reduce runtime warnings, streamline onboarding, and strengthen maintainability of the frontend build pipeline.
December 2025
3 Commits • 2 Features
Dec 1, 2025December 2025 focused on delivering developer-facing improvements to kivitendo-erp. Key outputs include a Design 4.0 Documentation Update and updated LESS tooling/minification guidance to address deprecations, improving build reliability and developer productivity. These changes reduce runtime warnings, streamline onboarding, and strengthen maintainability of the frontend build pipeline.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month 2025-11: Delivered a targeted UI improvement in kivitendo/kivitendo-erp by redesigning the multiselect2side component to a CSS Grid layout, boosting responsiveness and alignment across wrapped headers. The work lays groundwork for theming and variable-based styling.
1 Commits • 1 Features
Nov 1, 2025Month 2025-11: Delivered a targeted UI improvement in kivitendo/kivitendo-erp by redesigning the multiselect2side component to a CSS Grid layout, boosting responsiveness and alignment across wrapped headers. The work lays groundwork for theming and variable-based styling.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 (kivitendo/kivitendo-erp): Delivered a UI/UX improvement for the Bank Reconciliation form, strengthening structure and styling via a wrapper div around the form.html. This lays groundwork for clearer workflows, easier styling, and faster iteration on bank reconciliation features. Overall impact: improved user experience during bank reconciliation and maintainability of the UI codebase. Tech highlights include HTML templating, frontend structure enhancements, and version-control discipline. Major bugs fixed: none documented this month in scope.
October 2025
1 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 (kivitendo/kivitendo-erp): Delivered a UI/UX improvement for the Bank Reconciliation form, strengthening structure and styling via a wrapper div around the form.html. This lays groundwork for clearer workflows, easier styling, and faster iteration on bank reconciliation features. Overall impact: improved user experience during bank reconciliation and maintainability of the UI codebase. Tech highlights include HTML templating, frontend structure enhancements, and version-control discipline. Major bugs fixed: none documented this month in scope.
September 2025
1 Commits • 1 Features
Sep 1, 2025For 2025-09, delivered Design 4.0 Documentation and Guidelines for the kivitendo-erp repository, focusing on Less-based CSS adjustments, build/compilation instructions, and customization guidelines. This work centralizes design-system guidance, improves developer onboarding, and supports consistent UI implementation. The update is captured in commit 3333682456861f7bbcb4fb3b29804657797155b1 (Design4.0: Abschnitt in Entwickler Dokumentation hinzugefügt).
1 Commits • 1 Features
Sep 1, 2025For 2025-09, delivered Design 4.0 Documentation and Guidelines for the kivitendo-erp repository, focusing on Less-based CSS adjustments, build/compilation instructions, and customization guidelines. This work centralizes design-system guidance, improves developer onboarding, and supports consistent UI implementation. The update is captured in commit 3333682456861f7bbcb4fb3b29804657797155b1 (Design4.0: Abschnitt in Entwickler Dokumentation hinzugefügt).
September 2025
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 performance summary for kivitendo/kivitendo-erp. Delivered Flash theme visual polish and improved message presentation, refreshed CSS/LESS to align with latest design specs, and added targeted tests to ensure reliable flash messaging. These outcomes enhance on-screen readability, branding consistency, and UI stability, reducing post-release support risk and enabling faster iteration on frontend design.
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 performance summary for kivitendo/kivitendo-erp. Delivered Flash theme visual polish and improved message presentation, refreshed CSS/LESS to align with latest design specs, and added targeted tests to ensure reliable flash messaging. These outcomes enhance on-screen readability, branding consistency, and UI stability, reducing post-release support risk and enabling faster iteration on frontend design.
May 2025
1 Commits
May 1, 2025May 2025 focused on stabilizing asset handling in the Design40 theme for kivitendo-erp. Implemented a targeted bug fix to correct file permissions on LESS assets, preventing misinterpretation as executables and smoothing asset compilation across environments. While no new features shipped this month, the fix reduces deployment risk and improves maintainability. The change is isolated, well-documented, and traceable via commit 58c908766db3934809159f2e8ad17bf27c48834d.
1 Commits
May 1, 2025May 2025 focused on stabilizing asset handling in the Design40 theme for kivitendo-erp. Implemented a targeted bug fix to correct file permissions on LESS assets, preventing misinterpretation as executables and smoothing asset compilation across environments. While no new features shipped this month, the fix reduces deployment risk and improves maintainability. The change is isolated, well-documented, and traceable via commit 58c908766db3934809159f2e8ad17bf27c48834d.
May 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Delivered a practical LESS-based theming example in the kivitendo-erp repository to enable rapid, non-invasive branding customization. This work improves UX consistency, accelerates customer theming efforts, and maintains core CSS integrity.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Delivered a practical LESS-based theming example in the kivitendo-erp repository to enable rapid, non-invasive branding customization. This work improves UX consistency, accelerates customer theming efforts, and maintains core CSS integrity.
March 2025
8 Commits • 1 Features
Mar 1, 2025March 2025: Delivered targeted UI and data-layer improvements in kivitendo-erp (Design4.0) to boost usability, stability, and data integrity across core workflows. Focused on frontend rendering fixes, improved form usability, and a safe, scalable data schema change. The work reduces user friction in day-to-day tasks and simplifies future refinements, with measurable improvements in UI readability and consistency.
8 Commits • 1 Features
Mar 1, 2025March 2025: Delivered targeted UI and data-layer improvements in kivitendo-erp (Design4.0) to boost usability, stability, and data integrity across core workflows. Focused on frontend rendering fixes, improved form usability, and a safe, scalable data schema change. The work reduces user friction in day-to-day tasks and simplifies future refinements, with measurable improvements in UI readability and consistency.
March 2025
February 2025
3 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary for kivitendo/kivitendo-erp focusing on UI styling improvements and test/demo capabilities. Delivered new design system utilities, refactored delivery order status line to CSS-based styling for maintainability, and introduced a Flash Message Demo Page to facilitate testing and verification. No major bugs fixed this month. These changes enhance UI consistency, developer productivity, and testing coverage, contributing to faster feature delivery and improved user experience.
February 2025
3 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary for kivitendo/kivitendo-erp focusing on UI styling improvements and test/demo capabilities. Delivered new design system utilities, refactored delivery order status line to CSS-based styling for maintainability, and introduced a Flash Message Demo Page to facilitate testing and verification. No major bugs fixed this month. These changes enhance UI consistency, developer productivity, and testing coverage, contributing to faster feature delivery and improved user experience.
December 2024
3 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for kivitendo-erp: Implemented end-to-end Swiss QR-IBAN support with a dedicated database column and upgrade path, complemented by localization and user documentation to ensure accurate input and smooth adoption. This work enhances Swiss payment interoperability, data quality, and readiness for regulatory updates.
3 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for kivitendo-erp: Implemented end-to-end Swiss QR-IBAN support with a dedicated database column and upgrade path, complemented by localization and user documentation to ensure accurate input and smooth adoption. This work enhances Swiss payment interoperability, data quality, and readiness for regulatory updates.
December 2024
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 — Delivered QR-IBAN support for Swiss bank accounts in kivitendo/kivitendo-erp. Extended the bank_accounts data model with a QR-IBAN column and added a dedicated configuration field to distinguish QR-IBANs from regular IBANs, enabling direct booking and improved reconciliation for Swiss customers. Implemented a database upgrade to add the QR-IBAN column (Swiss) and related configuration, aligning with market requirements. Result: faster payments automation and reduced manual data entry; technical work includes DB migrations, data model extension, and configuration management. No major bugs reported this month; planning for broader testing and documentation in upcoming releases.
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 — Delivered QR-IBAN support for Swiss bank accounts in kivitendo/kivitendo-erp. Extended the bank_accounts data model with a QR-IBAN column and added a dedicated configuration field to distinguish QR-IBANs from regular IBANs, enabling direct booking and improved reconciliation for Swiss customers. Implemented a database upgrade to add the QR-IBAN column (Swiss) and related configuration, aligning with market requirements. Result: faster payments automation and reduced manual data entry; technical work includes DB migrations, data model extension, and configuration management. No major bugs reported this month; planning for broader testing and documentation in upcoming releases.
October 2024
1 Commits
Oct 1, 2024October 2024 monthly summary for kivitendo/kivitendo-erp focused on reliability improvements for e-commerce media upload. Implemented a targeted fix for Shopware 6.6+ image uploads by correctly retrieving and applying the media folder ID, addressing failures during product media publishing and improving overall connector stability.
1 Commits
Oct 1, 2024October 2024 monthly summary for kivitendo/kivitendo-erp focused on reliability improvements for e-commerce media upload. Implemented a targeted fix for Shopware 6.6+ image uploads by correctly retrieving and applying the media folder ID, addressing failures during product media publishing and improving overall connector stability.
October 2024
September 2024
1 Commits
Sep 1, 2024Monthly summary for 2024-09 focused on stabilizing background processing in the kivitendo/kivitendo-erp repository. Implemented a bug fix for ShopPartMassCreate background job to skip existing images, preventing deletions and incorrect image updates. This improvement preserves existing assets during batch creation, enhancing data integrity and reducing post-deployment remediation. Demonstrated strong skills in background job handling, safe file operations, and change traceability (commit ba8e17aae523919a7344ab168a37fa482a43de44).
September 2024
1 Commits
Sep 1, 2024Monthly summary for 2024-09 focused on stabilizing background processing in the kivitendo/kivitendo-erp repository. Implemented a bug fix for ShopPartMassCreate background job to skip existing images, preventing deletions and incorrect image updates. This improvement preserves existing assets during batch creation, enhancing data integrity and reducing post-deployment remediation. Demonstrated strong skills in background job handling, safe file operations, and change traceability (commit ba8e17aae523919a7344ab168a37fa482a43de44).
June 2024
1 Commits • 1 Features
Jun 1, 2024June 2024 — Delivered a cross-platform filename sanitization feature for kivitendo-erp to ensure titles used as filenames are cleaned of non-word characters, preventing synchronization errors across environments. Implemented within the background processing flow for mass creation of shop parts/images, reducing manual remediation and increasing reliability of automated sync pipelines. Tech debt addressed: safer file handling and clearer data integrity in batch operations.
1 Commits • 1 Features
Jun 1, 2024June 2024 — Delivered a cross-platform filename sanitization feature for kivitendo-erp to ensure titles used as filenames are cleaned of non-word characters, preventing synchronization errors across environments. Implemented within the background processing flow for mass creation of shop parts/images, reducing manual remediation and increasing reliability of automated sync pipelines. Tech debt addressed: safer file handling and clearer data integrity in batch operations.
June 2024
Activity
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Quality Metrics
Correctness93.6%
Maintainability93.6%
Architecture90.6%
Performance89.4%
AI Usage23.6%
Skills & Technologies
Programming Languages
CSSDocumentationHTMLLESSLessMarkdownPerlSQLTextXML
Technical Skills
API integrationBackend DevelopmentCSSDatabase ManagementDocumentationDocumentation UpdateFile Permissions ManagementFront End DevelopmentFront-end DevelopmentFrontend DevelopmentHTMLHTML TemplatingLESSLessLocalization
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline