Found via Gemini https://gemini.circumlunar.space/ and its Python client AV-98 https://tildegit.org/solderpunk/AV-98

Just what it says. A 4 GB Rπ costs £8.63/month ≈ €9.57/month.

Org-roam is a solution for effortless non-hierarchical note-taking with Org-mode. With Org-roam, notes flow naturally, making note-taking fun and easy. Org-roam should also work as a plug-and-play solution for anyone already using Org-mode for their personal wiki.

Solid (https://solid.mit.edu/)  was created by the inventor of the World Wide Web, Sir Tim Berners-Lee. Its mission is to reshape the web as we know it. Solid will foster a new breed of applications with capabilities above and beyond anything that exists today.

Solid (derived from "social linked data") is a proposed set of conventions and tools for building decentralized social applications based on Linked Data principles. Solid is modular and extensible and it relies as much as possible on existing W3C standards and protocols.

https://solid.inrupt.com/how-it-works
Within the Solid ecosystem, you decide where you store your data. Photos you take, comments you write, contacts in your address book, calendar events, how many miles you run each day from your fitness tracker… they’re all stored in your Solid POD. This Solid POD can be in your house or workplace, or with an online Solid POD provider of your choice. Since you own your data, you’re free to move it at any time, without interruption of service.

Results of a web page performance test found on https://danluu.com/web-bloat/
I copied the content of the first table here.
Load Time First Byte Start Render First Contentful
Paint Visually Complete Speed Index Last Painted Hero First CPU Idle Result (error code) Time Requests Bytes In Time Requests Bytes In
First View (Run 1) 0.413s 0.201s 0.300s 0.347s 0.400s 0.305s 0.400s > 0.300s 0 0.413s 8 33 KB 0.465s 9 34 KB

GriCal (which is a short form for Grid Calendar) is an open web where people store quickly a few information about interesting events, so that others can also easily know about them. GriCal also makes easy and fast to get notified and store interesting events in its own external calendars.

CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys (not even us).

A peer-to-peer hypermedia protocol to make the web faster, safer, and more open.