overthinkos/fedora-builder
distros/skills/fedora-builder/SKILL.md
Builder image with pixi, Node.js, and C/C++ build toolchain. Used as the default builder for multi-stage image builds. MUST be invoked before building, deploying, configuring, or troubleshooting the fedora-builder box.
tools
Updated Jun 22, 2026
$ install --global
skillsauthnpx skillsauth add overthinkos/overthink-plugins fedora-builderInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
95%
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SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
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50%
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CrowdStrikeAdvanced threat intelligence
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OSV-ScannerOpen Source Vulnerability database check
50%
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OWASP Dep-Check
50%
Last scanned: Jun 22, 2026, 6:34 AM140.3s1 file scanned
SKILL.md
- name:
- fedora-builder
- description:
- |
fedora-builder
Builder image with package managers and compilation tools. Default builder for pixi, npm, and cargo multi-stage builds (declared via builds: [pixi, npm, cargo]).
Owned by the overthinkos/fedora submodule. Lives bare-local in the
overthinkos/fedora submodule (mounted at box/fedora), alongside
/charly-distros:fedora + /charly-distros:fedora-nonfree; the submodule is
SELF-CONTAINED (import: []), so its images route builders to a bare-local
fedora-builder. Its rpmfusion/pixi/nodejs/build-toolchain candies are
pinned as github refs (@github.com/overthinkos/overthink/candy/<name>:<tag>) so
the same definition resolves in both main and the submodule. Build with
charly box build fedora-builder from the submodule.
Box Properties
| Property | Value | |----------|-------| | Base | fedora | | Layers | rpmfusion, pixi, nodejs, build-toolchain | | Platforms | linux/amd64 | | Registry | ghcr.io/overthinkos |
Full Candy Stack
fedora(quay.io/fedora/fedora:43)rpmfusion— RPM Fusion free + nonfree repo configuration. Applied first so subsequent candies candnf installpackages from RPM Fusion (e.g.x264-devel,ffmpeg-devel,libva-devel)pixi— pixi package manager + env pathsnodejs— Node.js + npmbuild-toolchain— gcc, cmake, autoconf, ninja, git, pkg-config, plus the smithay/cargo build deps (rust,cargo,clang-devel,nasm,wayland-devel,libva-devel,x264-devel,ffmpeg-devel,pixman-devel, …) needed for builder-stage compilation of Wayland compositors like pixelflux. See/charly-coder:build-toolchainfor the full grouped list.
Why rpmfusion is first
The build-toolchain candy's dnf install references packages that live in RPM Fusion free
(libva-devel, x264-devel, ffmpeg-devel). These are required to build pixelflux from
source (its libva-sys, x264-sys, and ffmpeg-sys-next cargo crates link against the
system libs). Without rpmfusion applied first, those dnf install calls would fail.
See /charly-selkies:selkies (Patched pixelflux build pipeline) for the consumer story.
Role in Build System
This image is referenced in defaults.builders as the builder for pixi, npm, and cargo multi-stage builds. It declares builds: [pixi, npm, cargo] to advertise its capabilities. The generator uses it as the FROM stage in multi-stage builds, providing build tools without bloating final images.
Quick Start
charly box build fedora-builder
charly shell fedora-builder
Key Candies
/charly-languages:pixi— Python package management foundation/charly-coder:nodejs— Node.js runtime and npm/charly-coder:build-toolchain— C/C++ compilation tools
Related Boxes
/charly-distros:fedora— parent base
Verification
After charly box build:
charly box list— box appears in listcharly shell fedora-builder— interactive shell works
When to Use This Skill
MUST be invoked when the task involves the fedora-builder box, multi-stage builds, or build cache configuration. Invoke this skill BEFORE reading source code or launching Explore agents.
Related
/charly-image:image— image family umbrella (candy:image entries — those carryingbase:/from:— incharly.yml, build/validate/inspect/list)/charly-build:build— the embedded build vocabulary (distros, builders, init-systems)
Related Skills
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SKILL.mdUpdated Jun 22, 2026
overthinkos/cue
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