Yup! On the Krux github, they've posted a script for doing it, or I'm sure you could just write one (or edit theirs to suit your needs if you have something you're working on). Krux doesn't use anything proprietary. It's all open source.
That's good to know.
And let's say you want to create an encrypted disk image, to secure some personal stuff, or some work documents. Use a child seed from your parent seed as a decryption key:
Using a child seed as a passphrase can be a good strategy, but BIP-85 allows deriving passwords with Base64 encoding... e.g: AwMJYOqM+ibwWt/s4BCcH.
However, most wallets that have implemented BIP-85 support only allow deriving child seeds, but BIP-85 also allows deriving WIFs, HEX, xpriv, and
BIP-85 Passwords...
You can explore the features of BIP-85 Passwords here:
https://bitcoiner.guide/seed/Warning: Keep in mind that this is an online site, although it's open-source, and you can review what it does, unless you use it for your tests and playground, you should not use what this site generates as your seed or passwords!
What you can do is download the html file to use in an offline environment for greater security.
The only tool other than this that supports BIP-85 Passwords is Coldcard (MK4 or Q).