Building Smolblog: Open

I’ve been meaning to blog more as I’ve been working on the actual Smolblog code. And, with one of my other side projects finally shipping, I feel like I can start putting down some thoughts here. So here I am.

And the first thing I want to talk about isn’t just code, it’s about what specific words mean. I specifically want to start with something that isn’t a programming or coding problem. It’s really easy for us developers to try to solve all sorts of problems with code. But while well-built software in the right hands can do amazing things, the biggest problems we will solve are social, not technical.

So when I say I want Smolblog to be “open,” this is a question that is more social than technical.

You Know What Else Means Open?

Lots of things like to say that they are “open.” Google repeatedly calls Android open. Epic games has been called “champions for a free and open internet." Cryptocurrency and blockchain projects are often touted as decentralized and open. And WordPress, the system that Smolblog is currently using as a foundation, is famously open. But these all mean different things.

Epic Games advocates for free and open systems where anyone can install anything they want, especially their own Epic Games Store. That store, at least currently, does not have the freedom for anyone to sell whatever they want. By the same token, Android is a freely downloadable project that can be used by any phone manufacturer, but it is heavily tied to the Google Play store that has its own approval process. And while anyone can get into cryptocurrency and make transactions, the resources required to actually participate in “mining” on popular blockchains are prohibitive to all but a few.

So when I say Smolblog is open, what do I mean? How about this:

Smolblog’s Definition Of Open

  1. The Smolblog software is freely available to use, modify, and share.
  2. Interactions do not require blogs or users to be on the same instance of the Smolblog software.
  3. Users can reasonably expect to take their data from one instance of the Smolblog software to another with no change in functionality.

A Brief Aside About Free and/or Open Source

The first point is one well-known in the software world. It corresponds to the freedoms championed by Free Software and Open Source advocates. Though the two groups have philosophical differences, they agree in practice: software should be free to use, free to change, and free to share (both modified and unmodified).

This is often found in libraries, frameworks, and infrastructure for web apps. Most web apps are written in scripting languages where there is no way to run the app without having the source code. And as companies base more and more of their existence on the web, the level of control that freely usable and modifiable software provides is essential.

While the source code is available for free, and anyone can search on their preferred search engine for help, companies with the budget to do so often buy official support from the vendor. Vendors often also provide fully-hosted versions of their products as a subscription offering. Discourse and Gitlab are two examples of projects like this.

This approach hasn’t worked for everyone, though. Elasticsearch used to be a project with Open Source and an official hosted solution. However, in the mid-2010s, their paid hosting was undercut by other vendors that offered the open source project on their systems, not Elastic’s. Elastic eventually changed their license to prohibit this, but in doing so violated the “freedom to use.”

While I don’t envy Elastic (and other similar companies) for the decisions they had to make, it highlights the key tradeoff of Free Software: the freedoms apply to everyone, including competitors. If Smolblog is going to be an open system, it has to be open for everyone. Any plan to make money from Smolblog has to take this into account.

How Do We Want To Do This?

First, some technical background. Smolblog is currently using WordPress as its foundation. I use those specific words because while Smolblog currently exists as a WordPress plugin, it is being built as its own product. Not everything in WordPress may be used or supported by Smolblog in the long term, but by making use of WordPress Smolblog is able to be a complete product sooner.

So, for our definition of open, we have three basic pillars: software, interactions, and data. Let’s tackle them in reverse order.

Open Data

This is a technical problem, and a relatively easy one at that. Most systems and web apps have a way of exporting a user’s data for download. This has been helped along by privacy laws in some parts of the world.

Smolblog will need a feature that allows users to download their data in a standard format. Smolblog will also need a feature that allows users to upload their data export.

This feature should be as self-contained as possible. The downloaded export should contain everything needed to load the data into a new server with minimal setup. This includes not just posts and images but also information on connected social media accounts and plugin-specific data. Another Smolblog server should be able to take this dowloaded export and re-create the user’s data from it.

By making this feature robust, it would provide end-users the freedom to leave a server for whatever reason they need, whether social, technical, or financial. It would also provide server maintainers the social freedom to remove unwanted users: with easy data portability, removing a user becomes less a case of “freedom of speech” and more a case of “should this speech be on this platform?”

WordPress currently has basic functionality in this area, but based on my time in a professional WordPress agency, it lacks the robustness this feature would require.

Open Interactions

Smolblog is intended to be as personal as a blog and as fun as social media. Part of social media’s appeal is the ease of interactions between people, such as replies or likes.

Smolblog features involving interactions will need to work identically whether the blogs are on the same server or different servers. No core features should rely on a central server.

The clearest example I can give of this is email. No single company “owns” email. Email works the same whether a user is on Gmail, Outlook, or iCloud (extensions, plugins, and other add-ons not withstanding). Most importantly, emails can be sent between users on the same server ( to or users on different servers ( to

Social interactions on Smolblog need to work the same way. A blog on needs to be able to interact with a self-hosted blog (say, just as easily as another blog on We don’t know what these interactions will look like yet, but this will be a requirement.

Some interactions, like following and reblogging, can be handled through existing standards like RSS/JSONfeed and oEmbed. This can open these features beyond Smolblog and extend Smolblog’s “openness” to other sites and apps.

Open Source™

This is more than just making the source code available. To embrace this as a principle and not just a bullet-point, Smolblog needs to not only have an Open Source license but be written in a way that is truly open.

The majority of the Smolblog project will be released with a strong copyleft license. Exemptions to this can be made in the interest of supporting the project and its openness.

I see three tiers to this:

Tier One: Copyleft through the GNU Affero General Public License

The Affero General Public License (AGPL) is possibly the strongest (or most restrictive) open source license. It requires the full source code of the application to be made available for sharing and modification to all users of the application, including users that only use it as a web app. It is called a “copyleft” license because any changes or derivative works must also be covered by the AGPL. For most cases, this will ensure that a Smolblog user can get not just the “official” source code but the source code to the specific server they are on.

WordPress currently uses an older copyleft license that provides most of these freedoms, but there is one key exception. Code for a web app is never “distributed” to its users, only those running the server. Automattic, the company behind WordPress, is able to use this exception to make products using WordPress like P2 exclusive to their own services. While they say they are committed to data portability and open source (and they have been), the ElasticSearch feud has shown that many companies will do everything they legally can.

We want to avoid any Smolblog or Smolblog-derived products from falling into this trap. The AGPL provides legal coverage for this.

Tier Two: Permissive through the Apache License

Licenses that do not require derivative works to be covered by the same license are sometimes called “permissive” licenses. These are especially useful for libraries and frameworks since they can be used by developers in commercial or private projects without involving the company lawyers.

Some of the code written for Smolblog will have a general purpose outside of the project. These could include tools for working with a social media site’s API, a library for putting data into a standard format, or a framework that enables a particular programming style. As part of being in a community of developers, sharing this code with a permissive license will enable Smolblog to benefit people beyond its users.

The Apache License is a recommended permissive license as it includes permissions and rights related to software patents.

Tier Three: Proprietary through individual commercial licenses

Wait, what? Hear me out.

This comes back to the definition of “open” I mentioned at the beginning. Smolblog being open means data portability and decentralized interactions as much as it means Open Source. Of those three principles, Open Source is the one least valuable to the average user (despite its necessity for the other two). There may be times where compromising a little on Open Source can enable uses for Smolblog that make it useful for even more people.

I don’t expect these situations to manifest anytime soon if ever. But putting this option on the table now means that anyone contributing to Smolblog’s source code is aware of it and can agree to it. Asking contributors to assign full copyright to their contributions, while reasonable, has the potential for abuse. Instead, I would prefer that any contribution agreement for Smolblog list the ways the contribution can be used.

One benefit to commercial licenses is being able to custom-tailor them to each business. For example, say a hosting business wants to offer managed Smolblog hosting. Their “secret sauce” is a caching layer that requires a custom-built plugin. This plugin wouldn’t enable any user-facing features, and it would not work without the host’s custom software. This business could get a commercial license limited to their integration code that would exempt their plugin from the AGPL requirements in exchange for a commission on their Smolblog service.

I choose these two examples specifically: Licensing Smolblog under the AGPL is intended to prevent someone building a product or feature locked to a specific provider. Users of Automattic’s P2 cannot move to a different WordPress and keep the same experience; the data is not truly portable in that sense. The hosting company example does not involve any impact to true data portability or use, since the user experience (and the data created by the users) is indistinguishable from the main project. The openness of Smolblog is not impacted in any meaningful way, and the project gets a source of funding that is not dependent on user-hostile advertising.

But as I said, this is all philosophy. None of it matters until Smolblog is actually built. And so we build. You’re welcome to join along.

Take care of each other; I’ll see you next time.

Evan Hildreth @oddevan