Thomas Röper had a thing on this (in German: https://anti-spiegel.ru/2024/teil-8-putin-ueber-die-legalisierung-des-mining-von-kryptowaehrungen/, also on bitcoin mining) and added the point that while CBDCs in the West come under a looming threat to abolish cash and herd all economic activity into surveilled channels, Russia has a very strong cash culture - he reminds people that it is legal and common in Russia to buy a house with cash, and there are specialized banking services to certify the money (if you want that). So, as this article (in the post) also states, this is more about creating ways to free trade relations from the hold global-hegemonic bank transfer monopolies had on Russia, which allowed third countries with 0 jurisdiction over their trade (i.e., the US and Europe) to hinder it.