feat(packages): add system monitoring tools - #340
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Summary of ChangesHello @shunkakinoki, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request enhances the Highlights
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Mesa DescriptionTL;DRAdded system monitoring tools to home-manager to improve baseline observability and troubleshooting. What changed?
Description generated by Mesa. Update settings |
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Code Review
This pull request adds several system monitoring tools (atop, below, collectd, htop) to the home-manager package list. The changes are correct and follow the existing convention of adding packages alphabetically. My main feedback is a suggestion to improve the long-term maintainability of the package list by grouping packages into categories. This will make the file easier to read and manage as more packages are added in the future.
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Pull Request Overview
This PR adds four system monitoring tools to the home-manager package list: atop, below, collectd, and htop. These tools enhance system monitoring capabilities but require platform compatibility adjustments.
Key changes:
- Added four monitoring packages in alphabetical order
- All packages properly inserted maintaining alphabetical sorting
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| aichat | ||
| aider-chat | ||
| amp-cli | ||
| atop |
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The atop package is Linux-specific and will not build on macOS/Darwin systems. Since this configuration supports both Darwin and Linux platforms (as seen in flake.nix), this package should be moved to the lib.optionals stdenv.isLinux section at the bottom of the file (around line 71) to prevent build failures on macOS.
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| below |
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The below package is Linux-specific (designed for Linux kernel monitoring) and will not build on macOS/Darwin systems. Since this configuration supports both Darwin and Linux platforms, this package should be moved to the lib.optionals stdenv.isLinux section at the bottom of the file (around line 71) to prevent build failures on macOS.
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| atop | ||
| argocd | ||
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| below |
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atop and below were added to the always-installed package list, but both packages only build on Linux. On Darwin hosts this module will now fail to evaluate because these attributes do not exist for the x86_64-darwin platform. These entries should be moved into the existing lib.optionals stdenv.isLinux block so macOS users can still evaluate and apply the home‑manager configuration.
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Performed full review of fd8551d...ac5a02b
Analysis
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Platform Compatibility Violation: Three tools (atop, below, collectd) are Linux-only but incorrectly added to the cross-platform section. They should be moved to the existing
lib.optionals stdenv.isLinuxsection to prevent build failures on macOS. -
Architectural Scope Misalignment: collectd is a server monitoring daemon designed for infrastructure/fleet monitoring, which doesn't align with the personal workstation/development focus of the repository. It introduces system service management concerns where other tools are interactive clients.
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Tool Redundancy: The PR introduces overlapping functionality with existing tools (htop vs. procs) without clear justification for maintaining both alternatives.
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Missing Organizational Structure: The growing package list lacks categorization, making architectural intent unclear and increasing the risk of future scope creep.
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1 files reviewed | 3 comments | Edit Agent Settings • Read Docs
| below | ||
| bun | ||
| cloudflared | ||
| collectd |
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collectd is a system monitoring daemon for infrastructure/fleet monitoring, which appears misaligned with this personal dotfiles architecture. The existing infrastructure tools (kubectl, k9s, argocd) are all client tools, not persistent daemons. Additionally: (1) collectd is primarily Linux-focused and will have Darwin compatibility issues, (2) it typically requires systemd/launchd service configuration not handled here. Consider removing unless there's a documented use case for running a monitoring daemon in a personal development environment.
Agent: 🏛 Architecture •
| aichat | ||
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| amp-cli | ||
| atop |
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Platform compatibility issue: atop is Linux-only (requires /proc filesystem) and will fail on macOS/Darwin. Move to the lib.optionals stdenv.isLinux section starting at line 71, where other Linux-specific tools like docker and kubernetes-helm are properly isolated.
Agent: 🏛 Architecture •
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| below |
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Platform compatibility issue: below requires eBPF and Linux kernel 4.11+, making it Linux-only. This will cause build failures on Darwin systems. Move to the lib.optionals stdenv.isLinux section (line 71+).
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2 issues found across 1 file
Prompt for AI agents (all 2 issues)
Understand the root cause of the following 2 issues and fix them.
<file name="home-manager/packages/default.nix">
<violation number="1" location="home-manager/packages/default.nix:13">
Move `atop` into the existing Linux-only optionals list; otherwise macOS users will hit an evaluation failure because `pkgs.atop` is unavailable on non-Linux platforms.</violation>
<violation number="2" location="home-manager/packages/default.nix:17">
Linux-only package `below` added to global list breaks non-Linux home-manager builds.</violation>
</file>
React with 👍 or 👎 to teach cubic. Mention @cubic-dev-ai to give feedback, ask questions, or re-run the review.
| aichat | ||
| aider-chat | ||
| amp-cli | ||
| atop |
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Move atop into the existing Linux-only optionals list; otherwise macOS users will hit an evaluation failure because pkgs.atop is unavailable on non-Linux platforms.
Prompt for AI agents
Address the following comment on home-manager/packages/default.nix at line 13:
<comment>Move `atop` into the existing Linux-only optionals list; otherwise macOS users will hit an evaluation failure because `pkgs.atop` is unavailable on non-Linux platforms.</comment>
<file context>
@@ -10,11 +10,14 @@ with pkgs;
aichat
aider-chat
amp-cli
+ atop
argocd
ast-grep
</file context>
✅ Addressed in e606448
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| below |
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Linux-only package below added to global list breaks non-Linux home-manager builds.
Prompt for AI agents
Address the following comment on home-manager/packages/default.nix at line 17:
<comment>Linux-only package `below` added to global list breaks non-Linux home-manager builds.</comment>
<file context>
@@ -10,11 +10,14 @@ with pkgs;
argocd
ast-grep
bat
+ below
bun
cloudflared
</file context>
✅ Addressed in f85d1be
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Pull Request Overview
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| bat | ||
| bun | ||
| cloudflared | ||
| collectd |
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collectd is a Linux-specific daemon for collecting system and application performance metrics. It should be moved to the Linux-specific section (after line 69) along with other monitoring tools like atop and below, rather than in the cross-platform package list.
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Actionable comments posted: 0
🧹 Nitpick comments (1)
home-manager/packages/default.nix (1)
73-73: Consider whether a monitoring daemon aligns with this personal dotfiles architecture.
collectdis a persistent monitoring daemon designed for infrastructure/fleet monitoring, which differs from the interactive CLI tools (htop, atop, below) also added in this PR. Key concerns:
- collectd requires service configuration (systemd/launchd) that isn't provided here, meaning the package alone won't run
- The existing monitoring/infrastructure tools in this repo are all client tools, not daemons
- Without service configuration, the binary will be available but non-functional for its intended purpose
If you have a specific use case (e.g., manual configuration elsewhere or testing), this is fine. Otherwise, consider whether
collectdshould be included.
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📒 Files selected for processing (1)
home-manager/packages/default.nix(2 hunks)
🧰 Additional context used
📓 Path-based instructions (4)
**/*.nix
📄 CodeRabbit inference engine (CLAUDE.md)
Format all Nix files with nixfmt
**/*.nix: Nix: Use 2 spaces for indentation
Nix: Keep line length under 100 characters
Nix: Sort attribute sets alphabetically
Nix: Use consistent spacing around operators
Nix: Format lists and sets consistentlyFollow the Nix expression language style guide
Files:
home-manager/packages/default.nix
**/default.nix
📄 CodeRabbit inference engine (CLAUDE.md)
Use default.nix files for module exports
Files:
home-manager/packages/default.nix
home-manager/**
📄 CodeRabbit inference engine (.cursor/rules/general.mdc)
Keep home-manager configurations under home-manager/
Files:
home-manager/packages/default.nix
home-manager/**/*.nix
📄 CodeRabbit inference engine (.cursor/rules/home-manager.mdc)
Use proper indentation and formatting in Nix files
Files:
home-manager/packages/default.nix
🧠 Learnings (20)
📓 Common learnings
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/*.nix : Use programs.<name> options provided by Home Manager when available
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/*.nix : Use home.packages for package installations in program configurations
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/programs/*/default.nix : Program configurations should include all necessary dependencies
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/programs/*/default.nix : Program configurations should prefer Home Manager’s built-in modules when available
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/*.nix : Program configurations should include all necessary dependencies
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/modules/*/default.nix : Follow Home Manager’s module structure (options + config with mkIf, mkEnableOption, etc.)
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Document all custom modules and their options
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Provide explicit typing for all options (using lib.types.*)
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-09-28T16:25:07.125Z
Learning: Prefer Nix packages over external package managers
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Document all custom modules and their options
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Modules must include proper option declarations (e.g., options.modules.<name> with mkEnableOption/mkOption)
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/programs/*/default.nix : Program configurations should include all necessary dependencies
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Provide explicit typing for all options (using lib.types.*)
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/modules/*/default.nix : Follow Home Manager’s module structure (options + config with mkIf, mkEnableOption, etc.)
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/programs/*/default.nix : Program configurations should prefer Home Manager’s built-in modules when available
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/*.nix : Use home.packages for package installations in program configurations
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/*.nix : Program configurations should include all necessary dependencies
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/modules/*/default.nix : Custom modules should define typed options (mkOption with appropriate lib.types)
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:26:18.516Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/general.mdc:0-0
Timestamp: 2025-09-28T16:26:18.516Z
Learning: Applies to nix-darwin/** : Keep Darwin-specific configurations under nix-darwin/
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:25:07.125Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-09-28T16:25:07.125Z
Learning: Applies to nix-darwin/** : Use Homebrew only for macOS-specific applications within nix-darwin configs
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:26:53.964Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/github-workflows.mdc:0-0
Timestamp: 2025-09-28T16:26:53.964Z
Learning: Applies to .github/workflows/ci.yml : CI must validate nix-darwin builds
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/*.nix : Use programs.<name> options provided by Home Manager when available
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Modules must follow the Home Manager module structure (define options and gate config with mkIf cfg.enable)
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/modules/*/default.nix : Use typed options whenever possible in modules
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/modules/**/default.nix : Use mkOption for configurable options in custom modules
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/programs/*/default.nix : Program configurations should follow the provided template (programs.<name>.enable, package, and settings attrset)
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:24.275Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/home-manager.mdc:0-0
Timestamp: 2025-09-28T16:27:24.275Z
Learning: Applies to home-manager/services/*/default.nix : Service configurations must handle dependencies correctly
Applied to files:
home-manager/packages/default.nix
📚 Learning: 2025-09-28T16:27:59.822Z
Learnt from: CR
Repo: shunkakinoki/dotfiles PR: 0
File: .cursor/rules/nix.mdc:0-0
Timestamp: 2025-09-28T16:27:59.822Z
Learning: Applies to home-manager/programs/**/default.nix : Program configurations in home-manager/programs should be organized by program name (one directory per program with a default.nix)
Applied to files:
home-manager/packages/default.nix
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- GitHub Check: nix-nixos
- GitHub Check: docker-build-push (linux/amd64, amd64, ubuntu-latest)
- GitHub Check: nix-darwin
- GitHub Check: e2e-run (MacOS, macos-latest)
- GitHub Check: nix-linux
- GitHub Check: e2e-run (NixOS, ubuntu-latest)
- GitHub Check: docker-build-push (linux/arm64, arm64, ubuntu-24.04-arm)
- GitHub Check: e2e-run (Ubuntu, ubuntu-latest)
🔇 Additional comments (1)
home-manager/packages/default.nix (1)
35-35: LGTM! Platform-specific packages correctly placed.
htopis appropriately placed in the cross-platform list (works on both macOS and Linux), whileatopandbeloware correctly gated behindlib.optionals stdenv.isLinuxsince they require Linux-specific features (/proc filesystem and eBPF respectively). The alphabetical ordering is also maintained throughout.Also applies to: 69-70
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Pull Request Overview
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| below | ||
| claude-code | ||
| codex | ||
| collectd |
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collectd is a cross-platform system statistics collection daemon that works on Linux, macOS, and other Unix-like systems. It should be moved to the general packages section (lines 6-68) rather than the Linux-only section, similar to how htop is placed in the general section while Linux-specific monitors like atop and below are in the Linux-only section.
Summary
Summary by cubic
Add system monitoring tools to home-manager to improve baseline observability and troubleshooting. Added btop and htop to the default package list; placed atop, below, and collectd under optional Linux packages.
Written for commit d95c258. Summary will update automatically on new commits.