l prism.r: add restic backups

lass/1systems/prism/config.nix

@@ -333,6 +333,31 @@ in {
         };
       };
     }
+    {
+      imports = [ <stockholm/lass/2configs/backup.nix> ];
+      lass.restic = genAttrs [
+        "daedalus"
+        "icarus"
+        "littleT"
+        "mors"
+        "shodan"
+        "skynet"
+      ] (dest: {
+        dirs = [
+          "/home/chat/.weechat"
+          "/bku/sql_dumps"
+        ];
+        passwordFile = (toString <secrets>) + "/restic/${dest}";
+        repo = "sftp:backup@${dest}.r:/backups/prism";
+        extraArguments = [
+          "sftp.command='ssh backup@${dest}.r -i ${config.krebs.build.host.ssh.privkey.path} -s sftp'"
+        ];
+        timerConfig = {
+          OnCalendar = "00:05";
+          RandomizedDelaySec = "5h";
+        };
+      });
+    }
   ];
 
   krebs.build.host = config.krebs.hosts.prism;