Where to get old LineageOS ROMs?

I have a few old devices which I want to put on LineageOS. This time it's about a **Samsung Galaxy S4 mini** (GT-I9195, serranoltexx). But the official LineageOS website shows them as not supported anymore . You basically are required to build the ROM for yourself, but this is beyond my knowledge and commitment. I already have flashed successfully exactly such a device with LineageOS in the past, but do not have the ZIP around anymore. **Why does LineageOS not keep the latest versions of their ROM's around for download? Where to get a trustworthy copy?** Note: The same happened with cyanogenmod earlier. The did not store older ROM's too. Note2: These devices were still on sale on recycling shops recently .