Some people have had a hell of a time installing Composer on a shared DH account, well here's how I did it. I'm going to assume you know what a shell user is and how to use basic terminal.
Movim is a decentralized social platform, written in PHP and HTML5 and based on XMPP. Database backend for caching. Seems suited for not-shared hosting because php-fpm is recommended, as well as Websockets and a long-running daemon (which shared hosting providers like Dreamhost don't like and kill automatically). Seems to require experienced webapp admins because knowledge of the application architecture is required.
Requires that the server support XEP-0060 (pubsub) because message transfer is built on top of it.
A self-hosted financial manager. It can help you keep track of expenses, income, budgets and everything in between. It supports credit cards, shared household accounts and savings accounts. It’s pretty fancy. You should use it to save and organize money. Does double-entry bookkeeping. Can interface with some banking APIs.