In 2018 I was involved with an NGO that planned on using Polis in their work. They contacted the maintainers who recommended contracting an agency which had experience with Polis as many of the core developers worked there. The NGO did just that, and paid a huge sum for the deployment. The first discussion resulted in a total overload of their servers. The NGOs marketing spent for this project was completely wasted and its reputation tarnished. I was brought in in the aftermath to communicate with the Agency and to scale the deployment. They were unable to scale even to 100s of simultaneous users. We tried to deploy it on our own, only to find out, that the public source code on github did not match the one deployed by the agency. The OpenSource Version on GitHub lagged the version the agency deployed by about a year. Some files critical to deployment were completely missing from the public release. Furthermore the Code was a complete mess. Apparently they never had a successful deployment. The fact that 3 years later in this very thread people are still pointing out that it was used years ago in Taiwan (which was the PoC that convinced the execs at my NGO in 2018) is a testament to that. If you look at their GitHub (which they don’t promote a lot on their website) they explicitly say: „ If you'd like to set up your own deployment of Polis, we encourage your to reach out to us for support. We look forward to working together“ This is the real purpose of their project, they try to get consulting gigs for themselves and extract a maximum of money out of unsuspecting NGOs and Govermental Orgs. They have sweet talking sales people but are unable to deliver on their promises. Never Again!