Hi!
Could somebody please port an /e/ for this awesome device, sm-t325 (I think the codename is mondrain)?
I have seen only mondrainwifi here on the forum, and the most recent was nougat.
On the other hand there ia recently done Lineage OS of Q that I can confirm is stable.
For some reason I cannot post a link. But it’s on XDA, under tab pro, t320/t325.
Regain your privacy! Adopt /e/ the unGoogled mobile OS and online services
The XDA Thread is here
The developer has posted his sources, so it should just be a question of writing a manifest, then building.
The manifest would look something like this
<?xml version="1.0" encoding="UTF-8"?>
<manifest>
<!-- kernel and device files -->
<project name="Valera1978/android_kernel_samsung_msm8974" path="kernel/samsung/msm8974" remote="github" revision="lineage-17.1" />
<project name="Valera1978/android_device_samsung_picassolte" path="device/samsung/picassolte" remote="github" revision="lineage-17.1" />
<!-- vendor blobs -->
<project name="Valera1978/android_vendor_samsung_picassolte" path="vendor/samsung/picassolte" remote="github" revision="lineage-17.1" />
</manifest>
And because my computer has nothing to do today while I am out, I have started a build …
… which has failed with the following error
FAILED:
build/make/core/Makefile:2094: error: hardware/samsung/mkbootimg.mk: No such file or directory
10:21:51 ckati failed with: exit status 1
I’ll need to look further into this, but it won’t happen today
I am so gratefull for your help on this! Looking forward to try your build now. I just need to learn how to insert thumbs up and likes here, if there are any… 
However it seems you picked the wrong thread - the t525 is the 10inch device, i have a 8.4inch that is called t325. Perhaps then the build goes smoother without rapported fails… 
Tried to link to the right thread but that still fails. Will try to post a link in parts:
https ://forum.xda-developers.com/t/rom-t320-t325-unofficial-lineageos-17-1-android-10-0-q-20210419.4014565/
Yes I spotted that just before I went out The correct thread seems to be
I have put together a manifest to build both the lte and the wifi versions from the listed sources.
Unfortunately, the builds of both devices are failing to build the kernel. Here is the error message
FAILED: ninja: 'kernel/samsung/msm8974_tab/arch/arm/configs/lineage_mondrian_defconfig', needed by 'out/target/product/mondrianlte/obj/KERNEL_OBJ/.config', missing and no known rule to make it
I’m afraid I don’t have time to try and debug the build: I know nothing about Samsung devices, and I would not know where to start.
If anyone else - perhaps with more experience of building for Samsung devices - wants to take this forward, my manifest is available at https://git.coop/phone-custom-roms/manifests/-/blob/main/one-offs/samsung-mondrian.xml
Sorry it didn’t work out 
Edit:
The picassolte manifest that I created first is in the same repo, and could be the starting point for anyone wishing to build for the 10 inch device: https://git.coop/phone-custom-roms/manifests/-/blob/main/one-offs/samsung-picassolte.xml
It’s ok. I am very gratefull for the effort anway!
Besides, as you say, somebody else can now pick up the manifests and build upon that.
thanx again! 