The Architecture
The blog system has three parts: individual HTML files for each post (stored in a blog folder), a posts array in Blog.tsx or your equivalent file (tracking slug, title, date, and category for each post), and a route handler in server.js that serves post files and checks publish dates.
This architecture separates content (the HTML files) from metadata (the posts array) and routing (the server). You can upload a hundred posts at once and they drip out on schedule without any further action.
The key insight: you are not publishing posts manually. You are uploading a library of content with scheduled release dates and letting the date comparison logic handle when each piece goes live. This is a fundamentally different content production model -- batch create, drip release, no ongoing publishing effort.
The Complete Setup Prompt
"Build a blog system for my Replit Express app. Create a blog folder for HTML files. In Blog.tsx (or my posts configuration file), maintain a posts array where each post has: slug (the filename without .html), title (display title), publishDate (YYYY-MM-DD), and category (one of my 10 category tags). Add a function isPublished(date) that returns true if today is on or after the date. On the /blog route, show published posts normally and future posts as Coming Soon with scheduled date. Serve individual posts at /blog/[slug]. If a post is not yet published, return 404."