hippocampus: Enable RISC-V Emulation w/ BinFMT

machines/hippocampus/backup.nix

@@ -42,9 +42,9 @@ in {
     environmentFile = config.sops.secrets."restic/backblaze".path;
 
     pruneOpts = [
-      "--keep-daily 2"
-      "--keep-weekly 4"
-      "--keep-yearly 8"
+      "--keep-daily 1"
+      "--keep-weekly 2"
+      "--keep-yearly 4"
     ];
   };
 }

machines/hippocampus/configuration.nix

@@ -9,6 +9,9 @@
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
 
+      # Allow RISC-V Native Emulation (Binfmt QEMU)
+      ./riscv.nix
+
       # Backup!
       ./backup.nix
 

machines/hippocampus/riscv.nix

@@ -0,0 +1,5 @@
+{ config, pkgs, lib, ... ]: {
+  boot.binfmt.emulatedSystems = [
+    "riscv64-linux"
+  ];
+}