Add a user-defined unpack location config for specific layer types

[bmicklea]

Describe the problem you're trying to solve
When unpacking a ModelKit on my localhost I have certain locations where I always want my models, datasets, prompts, etc... to go. For example:

• Models to /models
• Datasets to S3://databucket
• Skill.md files to .claude/skills

Describe the solution you'd like
Create a config file or .env file for KitOps that would hold the default locations for each layer type. It would be ideal if this is triggered by a special flag on unpack.

[cr3ativ3cod3r]

I would like to work on this issue.

[nXtCyberNet]

Hi! Is this issue still present? If yes, I’d be happy to work on it—please assign it to me.

[gorkem]

We do not really assign issues to contributors (only to maintainers) but the issues is open, there are no maintainers working on it.

[nXtCyberNet]

Understood. I'm start working on a solution for this and should have a Draft PR ready shortly.

[amisevsk]

IMO this approach (defined directories for datatypes in a Kitfile) kind of conflicts with what ModelKits are meant to pack -- what's the point of having a defined path for each element in a ModelKit (code, datasets, model weights) if they end up in an otherwise configured directory?