Since way before 40two.app, all of my online experiments have run on the impeccable VPS services offered by my good friend Tim of TiZu. His attention to detail, both in security and quality of hardware, has kept downtime to an absolute minimum.
Countless DDOS attacks, script-kiddies (with proxies) across the globe, my services weather the Fediverse currents with ease.
He’s now started documenting his best practices for the rest of us at tizutech.com. One for your bookmarks, if you’re into self-hosting.