---
title: keios.eu port — server-rendered themes and payments
trigger_condition: Płytarium v1 is running in production on SummerCMS Go (vue-fonoteka-app unchanged).
planted_date: 2026-09-16
---

# keios.eu port: themes and payments

Second port target after Płytarium. keios.eu is the smallest Golem15 project that has both a Twig theme and a payment flow.

| Aspect | keios.eu |
|---|---|
| Golem15 plugins | apparatus, dualformfield, faq, golem, journal, knobwidget, paymentgateway, pgstripe, quote, sitemap, translate, user, websockets |
| Theme | `wn-keioseu-theme`, 14 template files |
| Plugin PHP lines | ~74k |

## What it adds to SummerCMS

- Theme engine with Twig-like syntax (`pongo2` per research, used only for themes) and components dropped into templates.
- `paymentgateway` and `pgstripe` port. Stripe Go SDK is official.
- `journal`, `faq`, `quote` as classic content plugins with admin forms.

## Related

- `../notes/v1-target-plytarium.md`