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Mark Kemel

PROFILE

Mark Kemel

Over a three-month period, this developer contributed to the osbuild/osbuild and containers/qm repositories by delivering features focused on backend automation, repository management, and test reliability. They implemented end-to-end validation for QM image builds using Python and Shell, integrating Packit for automated CI feedback and hardening the test environment. In osbuild/osbuild, they enhanced repository configuration models and integrated a modern dependency solver, aligning with DNF/DNF5 standards and improving test determinism. Their work also introduced cost-based repository prioritization, enabling more predictable package resolution. Throughout, they applied skills in API development, data modeling, and test automation to improve deployment flexibility and reliability.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

7Total
Bugs
1
Commits
7
Features
4
Lines of code
64,794
Activity Months3

Work History

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026 monthly summary for osbuild/osbuild focusing on a key capability delivered to improve package resolution decisions and policy-driven behavior. The main achievement this month was introducing a cost-based repository prioritization mechanism for the DNF solver, enabling more deterministic selection when multiple repositories offer the same package. This feature lays groundwork for more nuanced repository policies and better alignment with cost-aware deployment strategies.

February 2026

4 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary for osbuild/osbuild focusing on business value and technical achievements. Delivered configurable repository support and a modernized dependency solver, improving flexibility, stability, and test determinism. Key changes were implemented to support richer repository configurations, align with DNF/DNF5 behaviors, and harden test data predictability for reliable CI outcomes.

January 2025

2 Commits • 1 Features

Jan 1, 2025

January 2025: Automated validation for QM image build delivered, with end-to-end coverage using automotive-image-builder. Packit integration enables running the QM image build test on PRs, accelerating feedback. A formal test plan and executable script were created to automate the build workflow, and the test environment was hardened by ensuring jq is available during validation runs.

Activity

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Quality Metrics

Correctness94.2%
Maintainability88.6%
Architecture94.2%
Performance85.8%
AI Usage25.8%

Skills & Technologies

Programming Languages

FMFJSONPythonShellYAML

Technical Skills

API developmentBuild SystemsCI/CDPythonTest AutomationTestingbackend developmentdata managementdata modelingdependency managementpackage managementtesting

Repositories Contributed To

2 repos

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

osbuild/osbuild

Feb 2026 Mar 2026
2 Months active

Languages Used

JSONPython

Technical Skills

API developmentPythonbackend developmentdata managementdata modelingdependency management

containers/qm

Jan 2025 Jan 2025
1 Month active

Languages Used

FMFShellYAML

Technical Skills

Build SystemsCI/CDTest AutomationTesting