Berry/plugins/test-plugin/lua/main.lua

local plugin = {}

function plugin.run()
    local window = berry.ui.createWindow("test window")
    berry.ui.app.mount(window)
    berry.ui.runOnEvent(window.Initialized, function()
        local test = berry.ui.createWidget("Static", "the absolute minimal experience")
        window.mount_in_window(test)
    end)

    
end

return plugin