with the newest release RM21.07 the firewall app uses the configuration system of the core. A nftables.conf is there inside "Manage app data".
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Hi, you also need to allow the localhost connection (see picture below). if you also want to use the allow-list-method for the output chain you need this settings: Best regards Alexander
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Hi jaquaree, here you can find a lot information about building snaps and how snaps work. As far as I know there is no converter available, also the technique behind is a bit different. https://snapcraft.io/tutorials
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