h1yapp
no ads. no library. offline workable. pwa available.
/howto/
calculate via callback. no redundant search.composed of [java.net.ServerSocket, java.nio.channels.FileChannel, java.util.Scanner]. no thread.converter available via negative lookbehind regular expression replacement. no redundant conditional branching.send available via text. manual signaling.split from pattern(1 length delimiter) via [matchAll, reduce]. no redundant slice.composed of [encrypt, decrypt, generateKey, exportKey, importKey]. available in secure contexts.