Everyone starts as one light. Every friend you bring is another, every invite a branch, every message a pulse travelling down it — and chat lives inside the light. Scroll, and watch one become all of them.
Drag a node — it is a real graph, not a picture — it is a real graph
Learn it once and you can read any part of your universe without a label. There is no sixth colour and there never will be — hover one below and the rest of the sky dims behind this page.
One graph, four renderers, sixty frames a second. The people and the bonds are identical underneath — press a sky and watch the same universe rearrange itself behind this page.
A starfield of everyone you know, anchored on you. Constellation edges between the people who actually talk, coloured by how strong the bond has grown.
A spanning-tree oak. Leaves grow with activity, bloom when a message lands, fade in autumn and take snow in winter — the calendar, not a theme picker.
Axons between minds, firing constantly. Two lobes wired across the middle, and the busiest paths are the ones that never go quiet.
Light rays through deep water. Everyone grows off the seabed on coral stems, and you are suspended in the middle of the water column.
There is no follow button and no suggested-for-you. A seed sprouts exactly once, so the only way your universe grows is somebody choosing to hand one to somebody else.
This seed sprouts once. Share it with one friend.
Branches thicken with years and messages. There is no number anywhere — you read a friendship by looking at how heavy the line is.
Not a theme picker — the actual date. Foliage, particles and palette turn four times a year, and inactive branches drift toward bare brown whatever the month is. Press a season and the oak behind this page turns with it.
Email and password, or Google — the same two choices in the app and on the web, backed by the same account. Start on your phone at dinner, open the same universe on a laptop the next morning.
Rootlume is not taking new people yet, on either surface. Everything above this line is running rather than illustrated — the graph behind the page is the real simulation — it is simply not open. Leave an address and we'll tell you the moment it is, in the browser and on iPhone.
Invites, the graph and chat are free forever. Nobody should have to pay to keep their friends.