I deleted my 14 year old reddit account when they pulled their shit. Then I recently created a new account because I need to be able to get answers to specific programming questions sometimes, and lemmy doesn’t have the population of users that reddit still has. I generally post on both lemmy and reddit, but I almost always get more answers on reddit.
Maybe lazy_static? Personally I’d just pass a borrow to the vec around. It’s very common for programs to have some global state that they pass around to different parts.