From UltraVanilla

Amanita is a small settlement west of Outpost. It currently consists of housing, and a brewery. There are plans for expanding the town currently. These plans include a central mushroom monument, a shopping district, and other additions.

At this moment, the nether highway from Outpost to Amanita is incomplete. It is still possible to reach Amanita from the west highway, but the blue ice doesn’t go all the way to the portal. There is a donation box outside the Amanita portal for those who want to help expand the nether highway, not just for Amanita, but for future settlements that go westward as well.