Show HN: We want to displace Notion with collaborative Markdown files

2026-03-0318:132813www.moment.dev

Run your entire business out of a Markdown file.

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Moment includes a built-in reactive programming environment with React and Tailwind CSS.

Because Moment stores documents as plain-old Markdown files on your local disk, and ships an embedded terminal, you can use the best coding agents in the world: Claude Code, Amp, Codex, Copilot CLI, and so on.

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## TRY IT IN 30 SECONDS


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Comments

  • By nashashmi 2026-03-0318:401 reply

    The problem with the mission statement mentioning Notion is that notion is too big of a product and you are probably only aiming to displace a small part of it.

    Secondly, if a server cant be spun up alongside this that serves markdown editing, that others can access immediately without going through a setup process, for guerilla collaboration, then it is not replacing notion. It is simply a different medium.

    Notion is a lot of things; pages, triggers, actions, databases, and agents. You are focusing only on pages.

    • By antics 2026-03-0319:031 reply

      Not 100% sure I understand, but, if you opt into sharing a doc, we do spin up a collaboration server on your behalf, and editors do not have to set anything up to use it. The bulk of the work we've had to do is to make this seamless and good.

      For the other points: yes, we aspire to do all of those things. :)

      • By nashashmi 2026-03-0518:531 reply

        Are those other points, something you can do in Markdown? DB in markdown?

        • By antics 2026-03-0521:17

          Our approach, which is behind a feature flag right now, is to allow users to attach "assets" to jj change IDs (these are sort of like stable git commit SHAs). This is how we will power inline comments, and it's how we'll power Notion-style SQLite-based databases. We already have, checked in, an implementation of IVM built on top of SQLite, specifically for this purpose. I don't see how we could be a Notion competitor without them.

  • By helsontaveras18 2026-03-042:512 reply

    I liked the idea and the headline got me to click. But then I got confused with the Postman capabilities… So this is beyond markdown—it’s helping you build live dashboards with Markdown.

    Why would I reach for that instead of Claude code building a dashboard with HTML/CS/JS?

    • By antics 2026-03-043:15

      Author here, speaking only for myself, sometimes you're right, and I do want to create a new Next.js app, deploy it to our internal Kubernetes cluster behind our corporate intranet with all the credentials and so on.

      And sometimes I don't! Sometimes I just want to add a graph of customer churn from a ClickHouse query directly into a PRD, and just say who has access to run it, so the proxy can enforce it. Or I want to put a release button into the document that documents the release process. Sometimes I want a collaboratively-editable document that just happens to be enriched with a little bit of personalized UI.

    • By litacho1 2026-03-043:10

      Great question! We support live collaborative editing and publishing what you build to the web, all within the app.

      We think Claude Code is great for single-player, but it breaks down when you want to share with your team.

  • By DerArzt 2026-03-0421:021 reply

    I'm not understanding the value here. If I'm writing markdown and avoiding notion, what does this provide my team that git does not?

    I can easily write the markdown docs and they will render fin in most git forges.

    • By antics 2026-03-055:551 reply

      Moment is distinctive because (1) it's natively programmable, and (2) has a native, high-performance, live collaborative editing.

      For (1), programmability is why our templates[1] are generally so rich. See, e.g, our NES emulator[2] or our SQLite Explorer[3], both of which would be vastly harder to accomplish in Notion. It's even much harder in Obsidian, which is Markdown-first! Both templates took ~30 minutes of work with `claude`, and to do something similar with their respective extension APIs would have take orders of magnitude more time, especially to publish.

      For (2), actually-working live collaborative editing is pretty hard to come by on Markdown-based docs editors. If you don't think you need this, the offering will be less compelling. My opinion is that many people who think they don't need this in a team setting end up being surprised how big a barrier this is when they try to use Obsidian as the central knowledge base for a team setting. Notion is extremely buggy and sometimes very slow, but in almost all cases I've seen, that ends up being worth the trade-off of not having to write code or get everyone to use the exact same extension set. Just my 2 cents though.

      [1]: https://www.moment.dev/templates

      [2]: https://www.moment.dev/templates/75ovowgp6jnv6lofwu60bx1d1

      [3]: https://www.moment.dev/templates/4m8zt4ne0bnqfb4hjtcwm2fob

      • By DerArzt 2026-03-1212:39

        You can make a NES emulator, that's neat! I'm probably not your target audience it seems. I don't know why a large amount of programmability is beneficial for a knowledge document system. Then again, I don't generally like my notes to be much fancier than text when possible so I can read it on any device or platform.

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