Simple questions about creating a modpack

[Cinder]

- How would I add a resource pack into the modpack?

 

- I have custom resources in the resource folder, how can I add these to the modpack as well?

 

- And how could I do something similar to a "same world" like thing like seen in modpacks such as Crash Landing?

[plowmanplow]

• You can add resource packs to the modpack archive by placing them in the /resourcepacks/ folder. However, this is usually frowned upon. It drastically bloats the pack and can cause problems for folks with more limited resources. Just provide a download to the resource pack on your pack details page.
• You would need to provide an "options.txt" file in the root folder of the modpack archive. Again, frowned upon as this will overwrite any local user settings every time the pack updates.
• Not familiar with that.