Sharing and recording
Share any demo or problem to social media with a link preview, and record a short video of a demo to post.
Every demo and every quick problem has a Share button in its header. Use it to post the page to social media, copy the link, or open your device's share sheet.
Share a demo or problem¶
Open any demo (see What the demos do) or any quick problem, then click Share. You can post to:
- X
On a phone or tablet, More apps opens the built-in share sheet, so you can send the link anywhere, including Instagram, Telegram, or email. There is also a Copy link option.
Whatever you post, the link shows a preview card with the demo or problem name, so people can see what they are about to open before they click.
Share the exact run you watched¶
The live demos replay from a seed. When a demo is running, the Share menu adds Share this exact run, which copies a link that replays the same evolution you just saw. Anyone who opens it watches the identical run in their own browser.
Record a demo as a video¶
Animated demos have a Record button next to Share. Click it and, if the demo has not started yet, it starts on its own so the recording opens right on the action with no dead time at the front. Recording stops on its own when the run ends (the goal is reached, the run finishes, or it is reset), so the clip has no frozen tail. You can also click Stop at any time. The recording happens entirely in your browser and is never uploaded anywhere.
When you stop, a window appears where you can:
- Download the video to your device, ready to post anywhere.
- Share video straight to your apps (on phones and tablets that support sharing files).
- Share the demo link to X, LinkedIn, Facebook, or WhatsApp, or copy it.
Each recording carries a small Vilvik label and the demo name, so it is ready to post as is.
Recording is available on the live simulation demos (the ones with a moving canvas, like the walker, the rockets, or the orbital voyager). The board and puzzle demos (Sliding Puzzle, Connect Four, and the step-by-step visualizer) do not have a Record button, since they update one step at a time rather than animating.
Sharing a quick problem¶
When you share a quick problem, the link opens a public page that introduces the problem and lets anyone try it for free. Signed-out visitors can read the page and sign in to run it, so the link works for everyone, not only people who already have an account.
To share your own finished runs instead of the problem itself, see Sharing a submission or result publicly.