Build-in-Public Platforms vs Open Source: What You Share

The short answer

A build-in-public platform is a place to share ongoing product work with an external audience. That does not by itself mean the application is open source. Decide separately which product updates, code, and working discussions are public, and describe actual repository access and stated licensing accurately.

For a SaaS founder, a build-in-public platform is a place to share ongoing product work with an external audience. That can include decisions, demonstrations, progress, and questions. Using one does not, by itself, mean you have chosen to release your application as open-source software. Decide what people can follow, which code they can access, and where working discussions happen separately.

These choices answer different questions. A visitor might understand why you changed an import screen without being able to inspect its implementation. A developer might read a released codebase without seeing the discussions that produced it. Both arrangements can be described accurately without treating public visibility as an all-or-nothing promise.

The useful next step is a publication map: identify the product story, the code, and the working conversation, then state the public scope of each. The examples below explain that map using official definitions, a dated engineering-team account, and a clearly invented product update.

What does a build-in-public platform help people follow?

The central job is making selected work understandable while the product develops. A useful update names a problem, explains a decision, shows relevant progress, and identifies what remains uncertain. A reader should be able to connect the update to the product rather than decipher a stream of unrelated announcements.

For example, Buildside’s about page describes a place for SaaS founders to share product progress, discover other founders’ work, and find useful collaborators. Its community guidance asks readers to understand public updates before contributing a question or observation. That describes a public product conversation, rather than a definition of software licensing.

Buildside publishes this Journal and operates the platform discussed here. Its description is a publisher-owned explanation of the intended job, not independent evidence of audience size, successful collaboration, or business results. Apply the same distinction when reading another platform’s promises.

When evaluating a public home, inspect whether a newcomer can understand the product, locate relevant earlier updates, and see what kind of response is welcome. Those are practical publishing questions. Whether the application’s repository is public belongs on a separate line of the map.

Separate reading, replying, and following when you inspect a platform. A page may be publicly readable while participation requires an account. Note what an outside visitor can actually see and what the next action requires. The word public should refer to a specific page or activity, rather than an assumption about every part of the service.

This matters when you link a product update from elsewhere. A new reader should reach the context you promised, even if a later interaction has another requirement. Keep a distinction between material you observed publicly, features the platform advertises, and access you have not checked.

Open source describes more than visible code

The Open Source Initiative’s Open Source Definition says source-code access alone is insufficient. Its criteria address distribution terms, including source availability, redistribution, and derived works. A screenshot of code, a technical explanation, and software released under an open-source license are different things.

GitHub’s licensing guidance likewise distinguishes making a repository public from licensing software for others to use, change, and distribute. If you describe a component as open source, connect readers to the actual repository and its stated license rather than asking them to infer that status from a social post.

Keep your language limited to what you have actually published. You might share implementation ideas, a small example, one component, or the application’s source. Say which one. A useful technical article can explain an approach without making a claim about the licensing of the entire product.

Do not use the phrase open source as a substitute for explaining access. Readers may want to inspect code, propose a change, run software themselves, or follow a product decision. Identify the relevant activity and give them the appropriate verified destination.

A repository and a public product story can overlap

GitHub’s repository documentation describes repositories as places for code, files, and revision history, with tools for discussing and managing work. It also distinguishes public access from private access. A repository can therefore support part of a public development story, but access settings alone do not explain your publishing practice.

A commit history may help a developer inspect implementation changes. A founder’s decision note may help an operator understand a workflow tradeoff. You can link the two when both are available, while recognizing that the audiences may need different explanations.

If you keep application code private, write a public update around the decision and the evidence you can responsibly share. A demonstration using invented records can make the behavior visible. Describe what viewers can observe and what they cannot inspect, without presenting the demonstration as a complete implementation review.

If you publish code, add context about what changed and why it matters to the intended user. A source release and a useful explanation can reinforce each other. Neither a repository link nor a public progress post automatically establishes that the product works reliably for a particular customer.

A real team account shows why the boundaries matter

In a June 13, 2024 account from Embrace, iOS engineer Austin Emmons used building in public in a specific engineering sense: public code together with public issues, pull requests, and their discussions. He described different choices across the company’s Android and iOS teams.

In that account, Android pull-request discussions happened publicly. The iOS team developed privately and updated a public repository after merges to its main branch. The article explained why the team wanted internal discussion while distributing source publicly. This is a dated account of that process, not an audit of how either team works today.

The practical lesson is to describe the boundary instead of assuming everyone uses the phrase identically. Public source distribution, public work-in-progress discussion, and public founder updates can have different scopes. Tell a reader which of those you offer and where each can be found.

Make a publication map before choosing a platform

Write down three objects: the product story, the source code, and the working discussion. For each, identify the audience and the current destination. Keep the description factual: public, restricted to named participants, private to the team, or not yet published. If the scope is unresolved, record that rather than assuming a default.

These are illustrative arrangements, not rankings or a certification of any service. You can use more than one destination when each has a clear job. The point is to avoid asking a single label to explain the visibility of everything you create.

Also identify who will keep each destination accurate. When a public update points to a component, its description should match the component that readers reach. When discussion stays private, the public explanation should not imply that all internal deliberation is available.

An illustrative import update makes the choice concrete

Consider an invented SaaS product that imports inventory records. The founder wants to explain a revised error message. The application repository remains private, while the public demonstration uses made-up stock items. These are premises of the example, not facts about an existing company or a reported release.

A clear update could say: “We changed the import preview to identify the row that needs attention. This demonstration uses invented inventory records. The application code remains private. I’m looking for feedback on whether the message explains the next action; this video does not show someone completing the task independently.”

That update creates a public product conversation with a specific scope. A reader can discuss the explanation or question the proposed behavior. They cannot infer how the parser is implemented, whether a customer succeeded, or whether the application is available for reuse.

Now suppose the founder separately decides to publish a small parsing utility. The next update should name that component, point to its real repository and stated license once available, and distinguish it from the rest of the application. Publishing one part should not make the product description imply that every component has the same status.

The choice of a progress platform has not made the code-distribution decision for the founder. The publication map keeps the two connected without making them interchangeable. It also helps a reader choose whether to comment on the product workflow or inspect the separate utility.

Choose the next action you want from a reader

Different public surfaces support different next steps. A product update might invite a question about a tradeoff. A repository might invite a bug report or proposed change through its documented contribution process. A demonstration might lead to a later test with a suitable user. Name the action rather than hoping that general visibility explains it.

Check the relevant destination before linking it. Does it contain the promised material? Can the intended reader access it? Does the description distinguish a prototype from a released feature? An accessible page is useful only when its content matches the invitation.

Keep code feedback and workflow feedback distinguishable in your notes. A suggestion about a parser may be technically valuable without showing that an operator understands the import process. A clear error message may help explain the workflow without proving the parser handles every file correctly.

You can learn from both kinds of response. Record what each one actually informs, then return with the relevant change or unresolved question. Avoid treating a public discussion as a substitute for the product testing, review, or customer research that the decision requires.

Keep the public boundary accurate as the product changes

Revisit the publication map when you change what is available. A private experiment may become a public component, a release may gain documentation, or a team may open part of its working discussion. Update the relevant descriptions and links when that happens.

Keep sensitive material decisions separate from the visibility of code. A public demonstration can use invented records; customer information needs its own consideration. The guide to building in public without oversharing covers how to preserve a useful lesson without exposing the underlying private detail.

Public building does not require narrating every internal conversation. Publish the context that helps the intended reader understand the work, and state the limits. If you share a decision after it is made, say that. If you invite feedback on an unfinished proposal, make that status clear too.

For the broader choice of a public home, reach channel, or launch surface, use the build-in-public platform comparison. This article resolves the code-and-visibility distinction; it does not establish a universal best platform or replace that wider selection process.

Before your next update, complete three sentences: people can follow this part of the product story; they can inspect this code, if any; and working discussions happen here. Use real destinations and accurate descriptions. That gives a reader more useful information than an unexplained promise to be completely open.

Sources

Open Source Initiative: The Open Source Definition — distribution criteria and the distinction from source access alone.

GitHub Docs: About repositories and Licensing a repository — repository purpose, visibility, and licensing as separate considerations.

Embrace: How the iOS team performs releases — Austin Emmons’s June 13, 2024 description of public distribution and working-discussion choices.

Buildside: About the platform and Platform comparison — publisher-owned description and the broader selection framework. All sources checked October 19, 2026.

Frequently asked questions

A note from Uriel Bitton

This is a conceptual publication map, not firsthand platform testing or a recommendation of a software license. The Embrace example describes its published 2024 account. The inventory-import update is invented. Buildside publishes this Journal and operates a founder platform.

Keep building with us

Get practical founder lessons and product updates in your inbox.

Subscribe or Join Buildside.

Keep reading