I asked an AI what the largest Discord communities are, for OpenSource projects. It might be realistic to appeal to these communities' sense of OpenSource values (taking advantage of recent controversy, and shift in sentiment against Discord), to migrate to a Flarum forum instead:
Top 20 Open Source Projects on Discord (by Members)
| Rank | Project | Members | Description |
|------|---------|---------|-------------|
| 1 | RPCS3 | 481,000 | Open source PlayStation 3 emulator |
| 2 | OBS Community | 244,000 | Open source streaming/recording software |
| 3 | Reactiflux | 222,000 | React, Redux, GraphQL community |
| 4 | Home Assistant | 126,000 | Open source home automation platform |
| 5 | Vue Land (Vue.js) | 122,000 | Vue.js frontend framework community |
| 6 | osu! | 106,000 | Open source rhythm game |
| 7 | Electron | 81,000 | Open source desktop app framework |
| 8 | Godot Engine | 64,000 | Open source game engine |
| 9 | Rust Community | 66,000 | Rust programming language |
| 10 | NestJS | 52,000 | Node.js framework |
| 11 | TypeScript Community | 51,000 | TypeScript language |
| 12 | Laravel | 39,000 | PHP framework |
| 13 | Tailwind CSS | 37,000 | CSS framework |
| 14 | Flutter | 61,000 | Google's UI toolkit |
| 15 | Deno | 17,000 | JavaScript runtime |
| 16 | Manim | 17,000 | Mathematical animation engine |
| 17 | JetBrains | 40,000 | IntelliJ platform community |
| 18 | Sentry | 35,000 | Error monitoring platform |
| 19 | Quasar | 28,000 | Vue.js framework |
| 20 | LibreNMS | 20,000 | Network monitoring system |
Key observations:
- RPCS3 (PS3 emulator) is the largest with nearly half a million members
- OBS Studio is the largest productivity/tool open source project
- Game emulators and game engines have massive communities
- JavaScript/TypeScript frameworks (React, Vue, NestJS) have very active communities
- Home automation (Home Assistant) has a huge community due to DIY enthusiast adoption
Note: These numbers fluctuate constantly as members join and leave. Data gathered from Discord server listings in early 2025.