Build in Public on Twitter: What to Share and How Often
Short answer: building in public on Twitter means posting the real progress of your product on X as you make it: what you shipped, what you learned, what broke, and the numbers you’re comfortable sharing. It works when every post teaches or shows something, not only announces. Post daily or close to it, mix updates with lessons and opinions, and keep product links in a first reply.
Why build in public on X?
Three reasons founders do it:
- An audience before launch. People who watched you build already know why the product exists, so launch day doesn’t start from zero.
- Feedback early. Posting a decision before you make it often brings replies from people who have made it before.
- Accountability. A public streak is harder to break than a private to-do list.
It isn’t free. It takes time every week, and some posts will land quietly. If you’re not ready to share anything real, wait until you are.
What should you share when building in public?
Share what a reader in your niche can learn from, not only what you did. Here are the main post types:
| Post type | What it shows | Example shape |
|---|---|---|
| Ship update | What you built this week and why | “Shipped [feature]. The reason we built it before [other feature]:” |
| Lesson | Something you learned the hard way | “We got [decision] wrong. Here is what I’d check next time.” |
| Decision in public | A choice you haven’t made yet | “Choosing between [option A] and [option B] for pricing. Leaning A because:” |
| Numbers | Revenue, users or signups, if you choose to share them | “Month [n]: [metric]. What moved it and what didn’t.” |
| Behind the scenes | Your process, stack or workflow | “How I plan a week of work as a solo founder:” |
| Opinion | A take on your niche from what you see while building | “Most onboarding flows ask for too much on day one.” |
The brackets are where your real facts go. Never fill them with numbers you don’t have.
For more shapes, see 40 tweet ideas and 30 tweet templates.
How often should you post?
Daily is a good target, and steady matters more than volume. One or two posts a day for three months will tell you more than ten posts in one week followed by silence. More on the tradeoffs in how often should you post on X.
A simple weekly mix for a founder:
- Two ship updates or behind-the-scenes posts.
- Two lessons or how-tos from what you built.
- One or two opinions on your niche.
- One numbers post, weekly or monthly, if you share numbers.
- Replies every day to other builders in your niche.
Keep product announcements to roughly one in five or six posts. Readers follow people who teach them something. A feed of launches reads like an ad.
Which formats work best?
Short posts carry most of the week. One idea, a strong first line, no link. These Twitter hooks examples help with the opening.
Screenshots and short videos show progress better than describing it. A before and after of a screen, or a short clip of a feature working, makes an update concrete.
Threads fit the bigger stories: a launch retro, a month in review, a decision explained step by step. Here is how to write a Twitter thread people finish.
Links go in the first reply. The post should stand on its own; the link to your product or changelog sits under it. Details in why your link belongs in the first reply.
What are the most common build-in-public mistakes?
- Only announcing. “We shipped X” with nothing to learn from it gets little reaction.
- Vague updates. “Big progress this week” says nothing. Name the feature, the problem, the result.
- Faking numbers or momentum. Readers notice, and it costs trust you can’t buy back.
- Writing for other founders only. If your customers aren’t founders, write some posts for them too, about their problems.
- Stopping after a quiet week. Most streaks die in the slow part. Batch your posts so a busy week doesn’t break the habit.
- Never looking back. Check once a week which posts earned replies and do more of those. How to reuse your best tweets.
How do you keep it going while you build?
Write in one sitting. Once a week, list what you shipped, what you learned and what you decided, then turn each item into a post. Read the top posts in your niche first to see what people are reacting to; find what works in your niche on X shows how. Schedule the posts across the week and keep ten minutes a day for replies.
For the full founder routine, see how to grow on X as a founder.
How Kalen fits
Kalen is an X assistant that works inside Claude, ChatGPT, Cursor or Claude Code. You tell your AI what you shipped and learned, and it writes the week’s posts, so the update you’d skip on a busy day still goes out. Kalen brings a daily briefing of the top posts in your niche and X trends, scores each draft from 0 to 100 against what works in your niche and your own best posts, and schedules the ones you approve through the official X API, with an optional first reply for your product link. He publishes single posts with an optional first reply, not full threads, so longer threads stay a by-hand job.
Plans start at $9 a month, with 14 days free and 50 credits; cancel before the trial ends and nothing is charged. See the plans.
FAQ
Is building in public on Twitter worth it?
It can be, if you share things your readers can learn from and keep it up for months. It’s a slow channel. If you need customers next week, it won’t replace direct outreach.
Should I share revenue numbers?
Only if you’re comfortable with it. Numbers get attention, but lessons and decisions work without them.
Should I build in public from a personal or company account?
A personal account, for most founders. People follow people. The company account can repost.
What if my product is too early to show?
Share the problem you’re solving, what you’re learning from potential customers and the decisions ahead. You don’t need a product to start.