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It’s good and everything (although it was a bit rough around the edges here and there), but is a no-go for me personally, unless they’ve changed their license. When I last checked it wad not open source, but merely source available since the license basically said you’re not allowed to modify the source code period. AGPL would’ve been a far better choice
If you want something like graphene or calyx (I.e. with additional de-googling and security improvements), take a look at DivestOS: https://divestos.org/pages/devices#device-blueline
Crdroid (which claims performance improvements, but also has a lot of customization options; reminds me of now deceased resurrection remix) is also good but doesn’t seem to officially support your device. There may be some ports on XDA, tho.