Instead of fully automatic, a system could:
Apps like “Auto Clicker” (typically used for game automation) can be set up to tap the like button repeatedly on Facebook’s mobile interface.
Facebook's Terms of Service strictly prohibit the use of automation to artificially inflate engagement. Their systems are designed to detect "coordinated inauthentic activity". If caught, you face:
Rather than risking your account with bots, you can use these proven strategies to naturally increase your likes and reach: Optimize Your Posting Strategy Meta Terms of Service - Facebook