reno/modules/rules_stub.lua

local awful = require("awful")
local gears = require("gears")
awful.rules.rules = gears.table.join(awful.rules.rules, {
    { rule_any = { class = {
        "steam_app_548430",
        "steam_app_%d*",
        "love",
        "^Minecraft.*"
    }},
        properties = {inhibit_compositor = true},
    },
    { rule = { name = "notificationtoasts.*" },
        properties = {
            focusable = false
        }
    },
    { rule = { fullscreen = true },
        properties = {
            titlebars_enabled = false,
            floating = true,
            border_width = 0,
            border_color = 0,
            size_hints_honor = false,
            placement=awful.placement.no_offscreen
        },
        callback = function(c)
            gears.timer.delayed_call(function()
                if c.valid then
                    c:geometry(c.screen.geometry)
                end
            end)
        end
    }
})