There are many options for cryptocurrencies but if your found BTCPay Server to be the solution that worked for you, then that is good news and you are not alone. Many businesses are using it and are also installing plugins for exchanges such as Fixedfloat and SideShift which allow customers to use various crypto at checkout but the shop owner receives BTC.
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If you (or anybody else) do install a crypto payment plugin, I would advise you to never use Fixedfloat because they have an outstanding allegation against them and the way they bullied the accuser and his client by forcing them to go through KYC and yet still have no information about whether their €8000 was returned after Fixedfloat confiscated it, you have to beware: Fixedfloat is scamming me for 8000+ EUR IMPORTANT PSA!
I simply wanted to say thank you to BTCPayserver developers and share my experience here. Plugin and website works nicely but sadly there is no demand on crypto payments.