firecracker-microvm/firecracker
Jan 2026 – Jan 2026
1 Month active
Languages Used
C
Technical Skills
C programmingLinuxdevice driver developmentkernel development
Babis Chalios
PROFILE
Babis Chalios
Worked on kernel and infrastructure reliability, focusing on bug fixes across two repositories. In firecracker-microvm/firecracker, backported and updated VMClock patches to Amazon Linux kernels, aligning with kernel mailing-list feedback to improve VM timing accuracy and CI build stability. This involved C programming and kernel development to ensure compatibility across multiple kernel versions. In e2b-dev/infra, implemented a Makefile scripting change that introduced a hostname retrieval fallback using hostnamectl, enhancing cross-distribution reliability for build tooling. The work emphasized DevOps practices and Linux system administration, reducing build failures and supporting stable deployments in diverse Linux environments without introducing new features.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
2Total
Bugs
2
Commits
2
Features
0
Lines of code
1,410
Activity Months2
Your Network
66 peopleShared Repositories
66
Work History
February 2026
1 Commits
Feb 1, 2026February 2026: Infra tooling hardened for cross-distro reliability. Delivered a hostname retrieval fallback in Makefiles to use hostnamectl when the hostname command is unavailable, improving compatibility across Linux distributions and reducing hostname-related build failures. The change is scoped to e2b-dev/infra and is driven by the need for stable builds in diverse environments. Commit c43687e2ad5a9840781d35aed8d12ed7cf28ab5d.
1 Commits
Feb 1, 2026February 2026: Infra tooling hardened for cross-distro reliability. Delivered a hostname retrieval fallback in Makefiles to use hostnamectl when the hostname command is unavailable, improving compatibility across Linux distributions and reducing hostname-related build failures. The change is scoped to e2b-dev/infra and is driven by the need for stable builds in diverse environments. Commit c43687e2ad5a9840781d35aed8d12ed7cf28ab5d.
February 2026
January 2026
1 Commits
Jan 1, 2026January 2026 — Firecracker: VMClock Compatibility Patches for Amazon Linux. Delivered backported VMClock patches to align with Amazon Linux kernel compatibility and kernel mailing-list discussions, improving CI kernel build reliability and VM timing accuracy. Commit 4132f641ed91977e882925a8e53abc6dd8adcb93. This effort reduces drift between mainline VMClock changes and Amazon Linux trees, enhancing stability for VM clocks in production and test environments. Technologies/skills demonstrated: kernel patch backporting, patch review and collaboration via kernel mailing lists, and CI pipeline integration for consistent builds.
January 2026
1 Commits
Jan 1, 2026January 2026 — Firecracker: VMClock Compatibility Patches for Amazon Linux. Delivered backported VMClock patches to align with Amazon Linux kernel compatibility and kernel mailing-list discussions, improving CI kernel build reliability and VM timing accuracy. Commit 4132f641ed91977e882925a8e53abc6dd8adcb93. This effort reduces drift between mainline VMClock changes and Amazon Linux trees, enhancing stability for VM clocks in production and test environments. Technologies/skills demonstrated: kernel patch backporting, patch review and collaboration via kernel mailing lists, and CI pipeline integration for consistent builds.
Activity
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Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage30.0%
Skills & Technologies
Programming Languages
CMakefile
Technical Skills
C programmingDevOpsLinuxLinux system administrationMakefile scriptingdevice driver developmentkernel development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
e2b-dev/infra
Feb 2026 – Feb 2026
1 Month active
Languages Used
Makefile
Technical Skills
DevOpsLinux system administrationMakefile scripting