Show HN: I replaced $500/mo in freelance tools with 20 ChatGPT prompts
A developer replaced $500/month in freelance tools (including Notion, Canva, and Calendar) with 20 custom ChatGPT prompts, sharing the system publicly on GitHub. The setup handles proposals, branding, scheduling, and invoicing through structured prompt templates, significantly reducing software costs for freelancers.
Background
- The author, Alexander ("promptalex53"), is a solo freelancer or small-business owner who was paying roughly $500/month for a suite of specialized freelance tools (e.g., invoicing, proposals, client management, project tracking).
- They replaced those paid tools by creating 20 custom ChatGPT prompts that handle the same tasks — generating contracts, writing proposals, creating invoices, managing to-do lists, drafting client emails, etc.
- This reflects a broader trend: as large language models (LLMs) like ChatGPT become more capable, individuals are "prompt-engineering" their way out of paying for SaaS products, raising questions about the future of subscription-based software for knowledge workers.
- The post appeared on Hacker News ("Show HN"), a community where makers and developers showcase projects; the "Show HN" tag means the author is presenting their own work for feedback.
- The $500/month figure is meant to be eye-catching — the real point is that a small set of well-designed prompts can substitute for many separate tools, not that ChatGPT is a literal drop-in replacement for every feature.