This video introduces Indy (Internet Direct) in Free Pascal / Lazarus and shows how to create a simple TCP server and client with: - Adding Indy to Lazarus with the Online Package Manager (OPM) - showing a basic TCP client and server using TIdTCPClient and TIdTCPServer - Updating the user interface safely from Indy threads (and function references) By the end, you’ll be able to run both programs, send messages, and see responses between the client and server - a small but practical introduction for anyone learning network programming in Pascal Links: #FreePascal #PascalProgramming #Delphi #Indy #LazarusIDE #SocketProgramming #TCPServer #TCPClient #ProgrammingTutorial #CodingMadeEasy