XR Hypermedia Federation 🥽

Digital commons for XR hypermedia 🥽

We connect, and help fund open XR ecosystems 🥦
We support public AR/VR/MR highways , seamlessly connected XR experiences: public XR hypermedia.

without obstacles 🈚 like appstores, rent-seeking, blockchain-minting etc
We encourage spatialisation of existing ecosystems like the 2D web, or file-collections using open protocols 🔌 : RSS, HTML, JML, Fediverse's ActivityPub and URI's using XR Fragments e.g.
Our mission

to promote the exchange of electronic spatial experiences and all that is related or beneficial to that purpose

100% piggybacks NLnet and European values: European Digital Rights and Principles to promote feelgood XR experiences for everybody.

, American DFI-values, narrowed down to OpenSource hyperlinked XR experiences.

"XR hypermedia is cost-efficient for big and small communities: it enables spatial education and innovation by hyperlinking XR experiences."
Leon van Kammen / Founder, Strategy Director / @lvk@mastodon.online

Projects:

#protocol #openlearning #browser #xrdiscovery #webtranslator #all

XR Forge is a selfhostable platform for JanusWeb/File-based XR Experiences. #cost-efficient #collaboration #Universities #E-learning

XR (URI) Fragments is a browser-protocol for spatial anchors in URLs (to 3D files).
In gamer language: spawnpoints via URLs.

JanusWeb is the XR browser for the browser.
Its JML allows for an XR web within existing files/web.
It also supports browsing 3D files via XR (URI) Fragments.

Biggu's Gate is self-hostable web-software to remix simple pedagogical XR games. Learners themselves can then, together with parents and teachers.

JanusWeb's translators spatialize the web, embedding webstandards like (RSS/HTML) and popular fediverse platforms (peertube/mastodon e.g.).

SearXR is a SearX-based meta-searchengine for WebXR experiences.

XRSH is a Linux Shell for WebXR, which makes the Linux ecosystem of cli-tools available in WebXR.

Timeline

JanusXR / JML syntax 2013

URL-linked virtual worlds (JanusVR) by James McCrae (incl. URL portalsystem). Rebrands in 2020 to (opensource) JanusXR with focus on janusweb. First convincing VR-headset-compatible user-operated spatial web, used by more than thousands of users.
SearXR Funded 2020

NLnet #NGI #EU funds SearXR an opensource selfhostable meta-searchengine for public URL-based virtual worlds.
Facebook rebrand 2021

8 years after JanusXR, Facebook attempts similar 'metaverse', but proprietary and centralized (rebrands to 'Meta')
aframe-verse 2020

XR Hypermedia Experiment which traverses crossdomain AFRAME XR experiences seamlessly. The learnings became the fundament for the XR (URI) Fragments.
XR Fragments Funded 2021

NLnet #NGI #EU funds XR URI Fragments by Leon van Kammen. Standardisation of spatial anchors in URI's. It got adopted by startups like Alkebulan, and was coincedentally (already) implemented by janusweb (independent simultanious innovation 💡).
XRSH funded 2021

First ever in-WebXR Terminal running an actual Linux ISO. This researchproject basically brings the opensource linux ecosystem to otherwise closed proprietary headsets. Aerospace engineers have reported to be using it.
HAN University collab 2024

HAN University uses XR (URL) Fragments while researching VR accessibility. One of the results of this collaboration is the addition of 2-button navigation to the XR Fragments spec.
XRForge funding 2025

XRForge was created to ....

Funding FAQ

Q: Are we talking VC-money?
A: Think microgrants / no-cure-no-pay funding of digital commons, think cosmolocalism.

Q: Do you fund things (my game) made with Unity/Unreal?
A: Indirectly funding/promoting proprietary engines with public money is a tough (public money public code).

Q: Which Open XR engines are preferred?
A: Fully opensource ones like:

♥️ = janusweb has the highest XR hypermedsupportvector, see translators, polyglot and addressibility

Contact us in case you've got questions

Q: Regarding hyperlinking, is linking to a webpage enough?
A: Most games or WebXR-sites which utilize links, fall in the category:

"I don't want customers to leave my premise"

A much better way is 3D-first surfing: by interlinking 3D files immersively via (XR Fragment) URLs or JanusWeb.
See the difference below:

Rule of thumb: if the XR content can be selfhosted by users separately from the XR viewer, you're on the right track.

Q: Crypto?
A: Not really, because of price volatility and regulatory/AML compliance hurdles. Privacy mechanisms like TALER can be discussed though.