A fastlane/Fastfile example: resign Electra ipas using you own Apple Developer account

Fastfile

platform :ios do
  desc "Resign Electra iOS ipa"
  lane :resign_ios do
    resign(
        ipa: "Electra1141-1.3.2.ipa",
        signing_identity: "iPhone Distribution: Luka Mirosevic (0123456789)",
        provisioning_profile: "Electra_iOS.mobileprovision",
    )
  end
end

platform :ios do
  desc "Resign Electra tvOS ipa"
  lane :resign_tvos do
    resign(
        ipa: "ElectraTV-1.3.2.ipa",
        signing_identity: "iPhone Distribution: Luka Mirosevic (0123456789)",
        provisioning_profile: "Electra_tvOS.mobileprovision",
    )
  end
end

# Download Electra ipas https://github.com/coolstar/electra-ipas
# Registe an iOS App ID e.g. `com.example.electra` (for both iOS and tvOS)
# Add iOS Provisioning Profiles, name it Electra_iOS and Electra_tvOS
# Edit fastlane/Fastfile
# Execute fastlane command to resign ipas

Fastlane resign Undecimus-v3.2.1.ipa without create a Fastfile

fastlane run resign ipa:"Undecimus-v3.2.1.ipa" provisioning_profile:"Undecimus.mobileprovision"