The slow way to run five social accounts is to write a different thing for each. The fast way is to write one thing well, and then reshape it for each platform. Most founders skip this because it feels like cheating. It's not.
The reshape isn't lazy. Each platform has different rules and a good reshape respects them. But the underlying idea is the same. You only have to find it once.
Start with the post that took you the longest
The hard part is finding the idea. So when you find one, milk it. The post you spent an hour writing is also the post worth turning into four other posts.
If your X post got more replies than usual, that's the source post for the week. Not because it went viral, but because it landed. Things that land for one audience tend to land for others if you reshape them right.
How each reshape works
The X version is the lean one. One sentence, no setup, the punchline up front. If your idea takes more than 280 characters, the X version is the punchline of the longer one.
The LinkedIn version is the story. The same idea, but with the context. What were you doing when you noticed it. Why it mattered. The takeaway in one sentence at the end.
The Reddit version is the discussion. Pose the idea as a question. Share what you've found. Ask if anyone else has seen the same. Reddit rewards posts that invite replies. So make yours one.
The TikTok version is the talking head. You, on camera, saying the idea in plain words. Sixty seconds. The hook is the punchline from your X version, said out loud.
The Instagram version, if you're doing Instagram at all, is the carousel of the LinkedIn version. Five slides, each one a beat of the story.
What changes and what doesn't
The idea doesn't change. The framing changes. If you find yourself writing a different idea for each platform, you're working too hard. Go back and find the one idea that survives all five reshapes. That's your post for the week.
Why this works
It works because the same person writes both your X post and your LinkedIn post, and that person has one voice. Trying to fake five voices is exhausting and people can tell. Trying to write five different things every week is also exhausting.
One idea, five shapes, written in the same voice. That's the move.