The latest release (v0.2.8-beta):

Features:

   * Create strong encryption keys offline
   * Manage your keys and do backups/export or add subkeys etc
   * Sign and validate keys and documents in a secure way
   * Fully open source (APGLv2)
   * Manage your Yubikey 5C, including loading subkeys
   * Secure archive of files that can be encrypted and backed-up
   * Encrypt and sign messages
   * Decrypt messages and check its signature
   * Backup and restore function including complete system cloning
   * Generate Bitcoin keys offline and store/access through graphical interface
   * Encrypted password storage
   * Encrypted bitcoin wallet storage (seed's words, LNURLs etc)
   * Generate and manage your own digital ID's
   * Generate your own Nostr Keys (NEW from GUIApp version 0.2.8!)
   * Transfer a Nostr private Key to a Nostr Signing Device (NEW from GUIApp version 0.2.8!)
   * Export IDs as image or as file (for upload to the "web-of-trust")
   * Validate others digital ID's (standard (RFC4880)
   * Store Bolt cards data for accessing load links (lighning Bitcoin), programming and resetting cards
   * Read and program Bolt cards with a connected Smart card reader