The AmigaVision team does not distribute Amiga software, we only maintain an open source script that builds a setup if you supply your own demos and games.
We can point you to the search page of the software preservation section of archive.org, but note that anything available there is not built by—nor distributed by—the team, and the team has no responsibility for these files.
AmigaVision-Amiga.img.xz image to an SD/CF card. We recommend Balena Etcher or Raspberry Pi Imager. On Windows, you can also use Rufus.