+ (for lei, public-inbox-watch and -imapd
+ on Linux)
+
+- IO::KQueue pkg: p5-IO-KQueue
+ (for lei, public-inbox-watch and -imapd
+ on *BSDs)
+
+- Net::Server deb: libnet-server-perl
+ pkg: pkg-Net-Server
+ rpm: perl-Net-Server
+ (for HTTP/IMAP/NNTP background daemons,
+ not needed as systemd services or
+ foreground servers)