I scrolled to the bottom at otvi.org (on a previous article) and found a "Donate now" button that goes to their PayPal address.
I scrolled to the bottom at https://otvi.org/ (on a previous article) and found a "Donate now" button that goes to their PayPal address.
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I scrolled to the bottom at https://otvi.org/ (on a previous article) and found a "Donate now" button that goes to their PayPal address.