Another notable, if old, train simulator from Japan is OpenBVE. It was easy to model railroads on it. Many short Brazilian routes were/are modeled in OpenBVE. It is particularly convincing since it simulates well the typical lateral wobbling that metric trains are known for.
It is all a conspiracy, now that mechanical keyboards are affordable and available and so many shapes and switches, they want to take this last pleasure (typing) from us
In the last 2-3 years, every contribution I made has been reverted by a reviewer or editor, either giving some excuse like lack of references, or none at all. Ceased to contribute to articles, and financially as well.
Would HLS be an option? I publish my home security cameras via WebRTC, but I keep HLS as a escape for hotel/cafe WiFi situations (MediaMTX makes it easy to offer both).
It is a bit expensive for this kind of "dangerous" experimenting. I wish there was a ESP32-like capable of running Linux. (Actually, there is: BeagleBoard. But these are even more expensive.)
At least here in Brazil, WhatsApp consolidated its position by working well in feature phones that ran J2ME and dominated the low-end market before Android. It took testing and adaptation to each and every available phone (as far as I can remember, J2ME was kind of a loose standard so developing a J2ME on one device did not guarantee it ran well, or at all, in any other). This, coupled with the possibility of eliding the outrageous SMS rates and the availability of EDGE data plans.