Hey, I'd like to suggest expanding payment processor options beyond just Stripe and PayPal.

I am currently looking at the following payment processors:

Revolut Merchant:

Supports Credit Card and Revolut Pay at fee of 1% + 0,20 € - as well as payment method save for later, which is great for Subscriptions V2.

Mollie: Mentioned here: https://roadmap.sellix.io/feature-requests/p/mollie-integration

MultiSafepay: Similiar to Stripe and Mollie, also supports several payment methods (e.g. Credit Cards, iDEAL, Sofort, PaysafeCard, WeChat Pay) and is more transparent.

GoCardless: Ideal for recurring billing without the overhead of credit card fees.

I understand that implementing multiple payment processors is a lot of work, so I looked at other options for my business myself and was interested in Hyperswitch from the start. Hyperswitch is an open source, minimalist gateway that connects many processors, which is especially helpful if a single provider fails. And this is where Sellix could benefit from it, as the subscription and billing features are very limited while the multi-processor support is huge.

Currently, most of Sellix's payment processors besides PayPal and Stripe aren't available in Germany (e.g. Square, Volume, CashApp) or have complicated setups (like Skrill or Perfect Money). Expanding beyond Stripe and PayPal would provide more control, especially in regions where existing options are either unavailable or unreliable. Additionally, all of these payment methods are currently not supported by Subscriptions 2.0, with the exception of Stripe and cryptocurrencies.