With your module's files in place, the next step is installing it through epesi's admin panel.
Open epesi in your browser, log in as an administrator, and go to Server configuration → Modules Administration & Store. Click Rebuild modules database to scan for new modules and add yours to the list. Your module should now appear among the modules available to install.
Notice: if simple_setup() in <module>Install.php returns false, you'll need to switch to Advanced Setup to install your module.
If your module doesn't show up after rebuilding the modules database, double-check the names of its files and classes — they need to match exactly. Once your module is installed, move on to the next page to give it some content and make it accessible in epesi.