trypostit/trypost ? reverse-engineered prompt

Build me a self hosted social media scheduling app that lets me plan everything from one calendar and publish to the main social platforms. I want to be able to create posts, drag them around in month, week, and day views, and tailor the same post for different networks before it goes out. It should support accounts like Instagram, Facebook, LinkedIn, X, TikTok, YouTube, Pinterest, Threads, and a few others, and show basic performance stats after posting.

Please include an AI helper that can write captions, hooks, full drafts, and carousel content in my brand voice, with brand settings for tone, language, and colors. I also need workspaces for different brands or clients, roles for team members, comments and approvals, reusable tags and CTA blocks, an asset library, and automations like scheduled posts, RSS, webhooks, and simple rules. If there are any current setup details or API limits I should know about, look them up online as you build it.