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How I used system prompts and iterative formatting to force ChatGPT to build a 1996 dial-up simulator

This story is from 2026-09-08. It is preserved in the archive; the latest stories are on the live feed.

To build 56k.rip , a Windows 95 dial-up simulator, I set strict system constraints to force retro rules. The main trick was explicitly forbidding modern CSS like Flexbox or Grid and enforcing table layouts instead. Generating dial-tone audio also required step-by-step prompts to map Web Audio API n…

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  1. 2026-09-08 03:44 · r/PromptEngineering
    How I used system prompts and iterative formatting to force ChatGPT to build a 1996 dial-up simulator

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