Given that all of this tech is already being used inside Twitter, I feel it is unethical to discuss any non-public info (like discussions with cloud vendors on cost etc.) in public. The engineers have been kicked out, the tech still belongs to Twitter. This is not "decimation" of the engineering, just of engineers' egos. Someone else will do the job, the show will go on.
Many of the projects mentioned there are open source and have been known publicly for a while, and talks about them have been presented over the years in many conferences.
This is misleading. Likely, those 50 engineers were standing on the shoulders of the giants, i.e. those open source maintainers who build wonderful value for everyone out there.
Just to add, while technically it's 4G, it's hard to rely on that and most of the time the speed I get is less than 2-3mbps and the connection is really unstable(lived in multiple places all across India). It was much better when jio was just launched due to less users. But now it has become race to the bottom and there is no way to get a good 4G connection in India.
At least where I live (or honestly wherever I've been in South India) Jio has been mostly reliable enough for me to even work remotely with zoom calls and ssh/slack. So YMMV is the real conclusion.
I have definitely worked on Jio's network without issues. But have also been to areas where it is patchy. But things have definitely improved in terms of both data plans and their speeds ever since jio came into the market.
Ignoring the fact that a transmissive X-ray image requires something to be on the other side of the object to catch the rays that pass through, have you ever tried passing X-rays through metal?
