* Fix the local build of the dependencies image, including the debug image instructions
* Make the deps image easily runnable
* improve readme
* Better caching strategy
* make dependency from IM to libs build stages
* fix missing folder error
* Hopefully, final solution
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Co-authored-by: Konstantin Koval
* Initial implementation
* Multiple fixes and improvemens
* Better `curl` retries timing
* Remove unused `TARGETOS` and `TARGETVARIANT` vars; add the version fetch fallback code to the build scripts
* Move the fallback code before the var usage
* Use double braces to make the code compatible with the `set -u`
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Co-authored-by: Konstantin Koval
