This modpack has of course permissions to be made, also, you can be crazy with this too, if you want to create a server based on this modpack, then do it, whatever bro, be happy.
Install Minecraft: Demon Slayer
Step 1
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Step 2
Type in the modpack name (Minecraft: Demon Slayer) or paste the following url into the search box.
Step 3
Finally, click Install at the bottom right of the launcher after you select Minecraft: Demon Slayer from the list on the left. The launcher will handle everything else!