To quote someone from HN: There is nothing special about the Troubled Engineer’s setup. It’s mostly a matter of using open platforms. With Firefox on the desktop and Fennec on Android (Graphene), you get full uBlock Origin support and therefore never see any ads anywhere, even on Youtube. On Android, there is also NewPipe that offers “free Youtube Premium” (play in the background and download). It’s really just uBlock Origin, a DNS blocker, and a few other small tweaks for YT. I use NewPipe on Android and Invidious instances. At this point I only see ads when setting up a VM and open the browser for the first time and forget I need to install uBO.

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