# Calibre vs Proxmox Kubernetes Engine

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | Calibre | Proxmox Kubernetes Engine |
|---|---|---|
| Score | 83/100 ✓ | 41/100 |
| Rank in category | #1 of 19 in Ebook Management | #10 of 11 in Container Orchestration |
| GitHub stars | 26 273 ✓ | 244 |
| Stars, last 30 days | +264 ✓ | +0 |
| Stable releases, 12 months | 18 ✓ | 7 |
| Latest release | v9.17.0 · 23 Oct 2026 ✓ | v0.0.7 · 13 Sept 2026 |
| Setup | Easy ✓ | Advanced |
| Official Docker image | No | No |
| License | GPL-3.0 | AGPL-3.0 |
| Main language | Python | — |

## Which one should you pick?

Calibre scores 83/100 against 41/100 for Proxmox Kubernetes Engine, so it is the safer default.

Calibre ships more often: 18 stable releases in the past year, against 7 for Proxmox Kubernetes Engine.

If you want the quickest setup, Calibre is easier to run; Proxmox Kubernetes Engine needs more configuration.

Calibre is growing faster right now (+264 stars in 30 days).

## Details

- [Calibre](https://selfhost.directory/project/calibre) (markdown: https://selfhost.directory/project/calibre.md)
- [Proxmox Kubernetes Engine](https://selfhost.directory/project/proxmox-kubernetes-engine) (markdown: https://selfhost.directory/project/proxmox-kubernetes-engine.md)

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Source: https://selfhost.directory/compare/calibre-vs-proxmox-kubernetes-engine