Off-topic, but since CMS-related submissions come up rather scarcely nowadays: What are some promising, modern Web Content Management Systems for medium-sized sites that I should look at, especially if I like the clean, modular design of ProcessWire very much, but not its implementation (too slow even with caching enabled)? I don't care about the programming language (PHP is fine, so is anything else). What I do care…
* [Craft CMS](https://craftcms.com/)
* [Perch Runway](https://grabaperch.com/products/runway)
Both are $200~300 per site, and like ProcessWire they are completely markup-agnostic and give you total flexibility to define your fields however you like.