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Viktor Scharf

PROFILE

Viktor Scharf

Over an 18-month period, Viktor Scharf developed and maintained core collaboration features for the opencloud-eu/opencloud and opencloud-eu/web repositories, focusing on secure file sharing, authentication, and robust end-to-end testing. He engineered solutions for multi-tenant isolation, LDAP and Keycloak integration, and enhanced API coverage using Go, TypeScript, and Playwright. His work included implementing accessibility testing, CI/CD automation, and release management, ensuring stable deployments and reliable user experiences. By upgrading dependencies, refining test infrastructure, and improving documentation, Viktor addressed both technical debt and evolving requirements, delivering scalable, maintainable systems that improved security, usability, and operational efficiency across the OpenCloud platform.

Overall Statistics

Feature vs Bugs

93%Features

Repository Contributions

242Total
Bugs
9
Commits
242
Features
123
Lines of code
143,132
Activity Months18

Work History

March 2026

19 Commits • 8 Features

Mar 1, 2026

March 2026 monthly summary: Across opencloud-eu/web, docs, and opencloud, delivered security hardening, reliability improvements, and feature enhancements that drive security, stability, and user value. Key outcomes include upgrading Keycloak and enhanced admin/user/group mgmt; stabilized E2E tests; security hardening with HSTS; OpenSearch 6.0 migration; and Favorites feature with reporting enhancements. These changes reduce operational risk, speed up releases, improve security posture, and enhance user-facing capabilities.

February 2026

7 Commits • 3 Features

Feb 1, 2026

February 2026 monthly summary for opencloud-eu/opencloud and opencloud-eu/docs. Focused on strengthening test coverage, upgrading dependencies, and improving user-facing documentation. Delivered tangible improvements to test robustness, build reliability, and release communications while maintaining security and compatibility with latest components.

January 2026

17 Commits • 11 Features

Jan 1, 2026

January 2026 monthly summary: Delivered a stable OpenCloud 5.x release across web packages (5.0.0 and 5.0.1) with comprehensive validation and full test execution, establishing a solid foundation for downstream deployments. Strengthened testing reliability and coverage for server-sent events (SSE) by updating browser dependencies and applying browser-specific exclusions for WebKit, reducing flaky outcomes across environments. Improved CI/CD efficiency and maintainability through an Ubuntu-based Node image upgrade and streamlined runtime by removing unnecessary transitionend checks. Reduced build friction by removing Graphviz from the docs/build pipeline. Documented and published major release notes for OCDAV 5.0.0/5.0.1 to communicate breaking changes and lint fixes. Enabled local WOPI validation through a Docker-based testing infrastructure, expanding local QA options. Enhanced the release process with updated QA checks and templates, and strengthened end-to-end testing reliability via test configuration improvements and error handling. Implemented PR label enforcement automation in the reva repository to ensure consistent categorization before merges.

December 2025

17 Commits • 11 Features

Dec 1, 2025

December 2025 monthly summary covering three OpenCloud repositories. Focused on delivering user-facing features, tightening security, improving CI reliability, and enhancing developer tooling. The month included expanded release documentation, configurable public link protection, streamlined proxy settings, and multiple CI/test improvements across docs, core, and web components, with notable runtime and API enhancements in the core platform.

November 2025

14 Commits • 11 Features

Nov 1, 2025

November 2025 focused on release engineering, CI/CD reliability, and feature delivery across the Open Cloud platform (opencloud-eu/opencloud, web, docs, reva). Key outcomes include hardened release management and asset versioning for safer deployments, strengthened CI/CD reliability, and significant feature work in calendar, federation, and admin/user management. In the web and docs repositories, OpenCloud 3.7.0 rollout and related UX improvements (admin avatar viewing, public link folder downloads, undo deleted files tests) were delivered, along with updated release notes and Tus upload configuration. These contributions improve deployment velocity, system stability, cross-repo collaboration, and user productivity, while expanding cross-tenant capabilities and calendar tooling.

October 2025

15 Commits • 9 Features

Oct 1, 2025

October 2025 focused on delivering core collaboration features, strengthening security and reliability, and advancing release readiness. Achievements span groupware capabilities, OIDC authentication, richer shared file UX with thumbnails, CI/testing hardening, and release/versioning work across opencloud, web, and docs. Accessibility, localization, and reliability fixes further reduce risk and improve user experience ahead of the 4.1.0 cycle.

September 2025

21 Commits • 8 Features

Sep 1, 2025

In September 2025, the OpenCloud EU teams delivered a focused set of capabilities and reliability improvements across three repositories, driving faster, more stable releases and improved runtime performance. The work emphasized CI/CD stability, test reliability, and robust release management to reduce cycle times and risk in production.

August 2025

10 Commits • 6 Features

Aug 1, 2025

August 2025 monthly overview for Open Cloud EU repos focused on delivering core features, stabilizing release processes, and strengthening multi-tenant security. The work spanned web, core OpenCloud services, and docs, with emphasis on end-to-end quality, test reliability, and faster, safer deployments.

July 2025

23 Commits • 10 Features

Jul 1, 2025

July 2025 was focused on delivering high-value features, improving reliability, and tightening release readiness across the OpenCloud suite. Key work spanned web, core platform, and documentation, with a strong emphasis on end-to-end quality, cross-platform compatibility, and infra alignment to reduce release risk. Highlights include robust file creation workflows, expanded space management capabilities, and comprehensive cross-device/browser testing, all backed by stronger test reliability and accessibility coverage. Release readiness was enhanced through core library updates and infrastructure changes, enabling smoother deployments and better user experiences in production.

June 2025

22 Commits • 9 Features

Jun 1, 2025

June 2025 performance highlights across OpenCloud EU repos focused on securing authentication, stabilizing delivery pipelines, expanding accessibility and end-to-end testing, and strengthening API/test coverage. Delivered features, fixed key test stability issues, and set the stage for faster, safer releases with deeper visibility into business impact.

May 2025

16 Commits • 9 Features

May 1, 2025

May 2025 performance summary highlighting testing infrastructure, CI/CD reliability, and feature delivery across opencloud-eu/opencloud and opencloud-eu/web. Delivered scalable testing for collaborative POSIX filesystem operations; preserved space images during admin fetch; decomposed storage CI/testing integration; and CI pipeline optimization. In the web app, added drag-and-drop folder upload, end-to-end media handling tests, and stability improvements for activity logging, with a pinned CI/CD environment for parity. Emphasis on business value: earlier defect detection, reduced risk in storage and media workflows, improved user experience for uploads, and more reliable release pipelines.

April 2025

12 Commits • 6 Features

Apr 1, 2025

April 2025 monthly summary for opencloud EU: Across three repositories, delivered and stabilized core automation, expanded test coverage, and tightened release governance. Implemented a Playwright-based API interaction layer to replace node-fetch, and extended end-to-end testing to cover pagination, language settings, and archive downloads. Strengthened CI/CD with environment traceability, PR label enforcement, and version bumps, improving PR review reliability and deployment predictability. Added a practical LDAP deployment example for opencloud_full, synchronized release/versioning, and upgraded key dependencies for stability and security. Fixed documentation gaps (Mac OS socket path typo) and corrected a bare-metal installation URL to reflect the local access point. Business value: more reliable API and end-to-end validation, faster feedback on changes, safer deployments, and clearer operational guidance for operators and customers. Technologies/skills demonstrated: Playwright-based API testing, end-to-end test design and maintenance, GitHub Actions CI/CD, version tagging and dependency management, LDAP deployment configuration, and documentation maintenance.

March 2025

12 Commits • 5 Features

Mar 1, 2025

March 2025 performance summary for opencloud-eu repos: Delivered significant improvements across docs and web components, focusing on installation flows, upgrade paths, data migration, and test stability. Key outcomes include consolidating the Bare-Metal installation into a single generate/build command; fixing a critical typo in the bare-metal build path; launching an OpenCloud Upgrade Guide with Docker/Docker Compose covering backups, version pull, config checks, and data integrity; publishing a Migration Guide for moving personal space data to OpenCloud via rclone; and strengthening End-to-End tests and CI stability to reduce flakiness and improve data alignment across spaces, collaboration sharing, tag visibility, and quotas.

February 2025

10 Commits • 6 Features

Feb 1, 2025

February 2025 Performance Summary for OpenCloud repos (opencloud-eu/opencloud, opencloud-eu/web, opencloud-eu/docs). The month focused on test reliability, deployment consistency, and streamlined onboarding. Deliverables across three repos reduced noise in tests, clarified test structure, standardized deployment configurations, and expanded local setup guidance and storage deployment options, supporting faster onboarding, more maintainable tests, and reliable deployments.

January 2025

10 Commits • 3 Features

Jan 1, 2025

January 2025 monthly performance summary for opencloud-eu/opencloud and opencloud-eu/web. Focused on stabilizing OpenCloud environments and boosting testing efficiency, delivering critical environment configuration fixes, branding alignment, and automated testing enhancements, alongside parallelized end-to-end testing to improve reliability and speed.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for repository owncloud/web. Focused on stabilizing the CI/CD testing pipeline by aligning the pipeline with the latest components and dependencies. Delivered a feature to synchronize CI/CD versions used in tests, tied to the OCIS commit and Collabora Code image tag (commit 2860333f35062b31d5f09dda2018d177f39ac640, message: update ocis. run tests). No major bugs fixed this month. Impact: more reliable tests, reduced environment drift, and faster feedback loops for releases. Technologies/skills demonstrated: CI/CD pipelines, version pinning, OCIS integration, Collabora Code images, test automation, and change traceability. Business value: lowers release risk and accelerates iteration.

November 2024

15 Commits • 6 Features

Nov 1, 2024

November 2024 monthly summary for core development efforts across ocis, web, and web-extensions. Delivered enhancements to deployment, CI, image processing, and test automation, with a strong focus on reliability, scalability, and business value. The work emphasized data integrity, faster feedback cycles in CI, and broader test coverage to reduce risk in production releases.

October 2024

1 Commits • 1 Features

Oct 1, 2024

Monthly summary for 2024-10: Delivered Federated Resource Sharing and Download Enhancements in opencloud-eu/web, improving cross-tenant collaboration, resource sharing, and download reliability with expanded test coverage. Added end-to-end test scenarios for uploading into folders and sharing with federated connections; ensured federated users can download shared folders, backed by a robust suite of tests.

Activity

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Quality Metrics

Correctness91.2%
Maintainability89.8%
Architecture86.8%
Performance85.4%
AI Usage22.8%

Skills & Technologies

Programming Languages

BashDockerfileDroneGherkinGoJSONJavaJavaScriptLDIFMakefile

Technical Skills

API Contract TestingAPI DevelopmentAPI IntegrationAPI TestingAPI developmentAPI integrationAPI testingAcceptance TestingAccessibilityAccessibility TestingAuthenticationBackend DevelopmentBash ScriptingBehatBehavior Driven Development (BDD)

Repositories Contributed To

7 repos

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

opencloud-eu/opencloud

Jan 2025 Mar 2026
14 Months active

Languages Used

BashGherkinGoMakefilePHPShellYAMLMarkdown

Technical Skills

API TestingBuild AutomationCI/CDConfigurationConfiguration ManagementDevOps

opencloud-eu/web

Oct 2024 Mar 2026
15 Months active

Languages Used

GherkinTypeScriptJavaScriptYAMLStarLarkLDIFShellStarlark

Technical Skills

Cloud StorageEnd-to-End TestingFrontend DevelopmentAPI TestingConfiguration ManagementCucumber

opencloud-eu/docs

Feb 2025 Mar 2026
13 Months active

Languages Used

MarkdownShellJSONYAMLBash

Technical Skills

Cloud StorageDevOpsDockerDocumentationSystem AdministrationTechnical Writing

owncloud/web

Nov 2024 Dec 2024
2 Months active

Languages Used

GherkinStarlarkTypeScriptYAMLShell

Technical Skills

Backend DevelopmentBuild AutomationBuild SystemsCI/CDConfiguration ManagementFull Stack Development

owncloud/web-extensions

Nov 2024 Nov 2024
1 Month active

Languages Used

DroneJavaScriptStarlarkTypeScript

Technical Skills

Build ConfigurationCI/CDCI/CD ConfigurationConfigurationConfiguration ManagementDevOps

owncloud/ocis

Nov 2024 Nov 2024
1 Month active

Languages Used

DockerfileShellStarlarkYAML

Technical Skills

CI/CDConfiguration ManagementDevOpsDockerEnvironment VariablesLinux

opencloud-eu/reva

Nov 2025 Jan 2026
2 Months active

Languages Used

MarkdownYAML

Technical Skills

documentationversion controlDevOpsGitHub Actions