Miraheze seems to be offering a platform to create private wikis and it runs the same software as Wikipedia. You do need to fill out a form and request a wiki but after that you and people you specify should be able to see and edit that wiki (with the exception of the main page which can be seen by everyone). Source: about 1 year ago

The people over at https://miraheze.org/ have been kind enough to host a wiki for us to upload our lore onto. Source: about 1 year ago

You can go here to get a free wiki that isn't horrible: https://miraheze.org/. Source: about 1 year ago

Miraheze = a free, British-based wiki farm run by volunteers and supported by donations. Source: over 1 year ago

For those looking for an alternative to fandom https://miraheze.org is a good choice. Not for profit and they use vanilla mediawiki (what wikipedia uses) instead of whatever abomination fandom has going on. Source: over 1 year ago

Hey HN! I am asking out of genuine curiosity, and perhaps doing a little market research. My team uses https://www.donut.com/ and https://officevibe.com/ but I'm pretty sure we're on the free tier for both. Do you work in a team that pays monthly for any cool Slack apps or integrations? Which ones? If you're not the one paying, do you find it useful - or annoying? Cheers! - Source: Hacker News / over 1 year ago

Officevibe, which is an employee experience platform, regularly sends out Slack notifications on behalf of their customers asking employees to complete a brief survey. Their engineering team utilizes the Automations API to create lists of users for whom the Slack survey could not be delivered and send them an email survey instead. - Source: dev.to / about 2 years ago