How do I migrate from ecryptfs to a similar setup using ext4 filesystem level encryption?

Currently I'm using ecryptfs - it's a software layer that encrypts my home folder with a key which is in tu encrypted with my password, and it hooks into PAM to unlock it on login.

Unfortunately, ecryptfs is slow. If I haven't accessed it in a while, a simple ls ~ can take up to 20 seconds...

I'd like to switch to ext4 encryption - since it's way faster and can generally do everything ecryptfs did.

I'm on debian sid, but as far as I know there isn't any overarching project that I can one-liner install that will do the same as ecryptfs with ext4 encryption. On top of this, instructions conceing ext4 encryption seem few and far between.

tldr: I'm looking for instructions on ext4 encryption for my home folder that will work on login.

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