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Wednesday, September 15th, 2021

Design engineering on the Clearleft podcast

If you’re subscribed to the Clearleft podcast, then the latest episode is winging its way through the ether to your podcast software. The topic is one close to my heart: design engineering.

I wrote about this role back in February. I think my fervour comes across in that post and you can probably hear it in the podcast episode too.

As ever, I end up asking the question, “So what exactly is insert topic of the podcast episode here?”

I’ve got some smart folks answering that question. There’s an excerpt from Tobias Ahlin’s talk at this year’s UX Fest. And when I interviewed Adekunle Oduye for a previous episode on prototyping, we also discussed design engineering so I pulled out the relevant bits. But the bulk of the episode features the voice of Trys Mudford.

As you can gather from the many posts on Trys’s blog, he has a lot to say on the topic of design engineering. Luckily for me, he says it all with a clear, articulate delivery—the perfect podcast guest!

This episode finishes with a call to action (oh, the synergy!). If, after listening to 23 minutes of discussion on design engineering, you find yourself thinking “Hey, I think I might be a design engineer!”, then you should definitely head along to this job opening at Clearleft:

We’re currently looking for a design-friendly front-end developer with demonstrable skills in pattern-based prototyping and production.

Have a listen to episode two of season three of the Clearleft podcast and if you like what you hear, come and join us!

Tuesday, September 14th, 2021

Benjamin Parry~ Writing ~ Engineering a better design test ~ @benjaminparry

It sometimes feels like we end up testing the limitations of our tools rather than the content and design itself.

What Benjamin found—and I heartily agree—is that HTML prototypes give you the most bang for your buck:

At the point of preparing for usability testing, it seemed ludicrous to move to any prototyping material other than the one we were already building in. The bedrock of the web: HTML, CSS and Javascript.

Sunday, August 8th, 2021

Browsers

I mentioned recently that there might be quite a difference in tone between my links and my journal here on my website:

’Sfunny, when I look back at older journal entries they’re often written out of frustration, usually when something in the dev world is bugging me. But when I look back at all the links I’ve bookmarked the vibe is much more enthusiastic, like I’m excitedly pointing at something and saying “Check this out!” I feel like sentiment analyses of those two sections of my site would yield two different results.

My journal entries have been even more specifically negative of late. I’ve been bitchin’ and moanin’ about web browsers. But at least I’m an equal-opportunities bitcher and moaner.

I wish my journal weren’t so negative, but my mithering behaviour has been been encouraged. On more than one occasion, someone I know at a browser company has taken me aside to let me know that I should blog about any complaints I might have with their browser. It sounds counterintuitive, I know. But these blog posts can give engineers some ammunition to get those issues prioritised and fixed.

So my message to you is this: if there’s something about a web browser that you’re not happy with (or, indeed, if there’s something you’re really happy with), take the time to write it down and publish it.

Publish it on your website. You could post your gripes on Twitter but whinging on Jack’s website is just pissing in the wind. And I suspect you also might put a bit more thought into a blog post on your own site.

I know it’s a cliché to say that browser makers want to hear from developers—and I’m often cynical about it myself—but they really do want to know what we think. Share your thoughts. I’ll probably end up linking to what you write.

Tuesday, August 3rd, 2021

A Few Notes on A Few Notes on The Culture

When I post a link, I do it for two reasons.

First of all, it’s me pointing at something and saying “Check this out!”

Secondly, it’s a way for me to stash something away that I might want to return to. I tag all my links so when I need to find one again, I just need to think “Now what would past me have tagged it with?” Then I type the appropriate URL: adactio.com/links/tags/whatever

There are some links that I return to again and again.

Back in 2008, I linked to a document called A Few Notes on The Culture. It’s a copy of a post by Iain M Banks to a newsgroup back in 1994.

Alas, that link is dead. Linkrot, innit?

But in 2013 I linked to the same document on a different domain. That link still works even though I believe it was first published around twenty(!) years ago (view source for some pre-CSS markup nostalgia).

Anyway, A Few Notes On The Culture is a fascinating look at the world-building of Iain M Banks’s Culture novels. He talks about the in-world engineering, education, biology, and belief system of his imagined utopia. The part that sticks in my mind is when he talks about economics:

Let me state here a personal conviction that appears, right now, to be profoundly unfashionable; which is that a planned economy can be more productive - and more morally desirable - than one left to market forces.

The market is a good example of evolution in action; the try-everything-and-see-what-works approach. This might provide a perfectly morally satisfactory resource-management system so long as there was absolutely no question of any sentient creature ever being treated purely as one of those resources. The market, for all its (profoundly inelegant) complexities, remains a crude and essentially blind system, and is — without the sort of drastic amendments liable to cripple the economic efficacy which is its greatest claimed asset — intrinsically incapable of distinguishing between simple non-use of matter resulting from processal superfluity and the acute, prolonged and wide-spread suffering of conscious beings.

It is, arguably, in the elevation of this profoundly mechanistic (and in that sense perversely innocent) system to a position above all other moral, philosophical and political values and considerations that humankind displays most convincingly both its present intellectual immaturity and — through grossly pursued selfishness rather than the applied hatred of others — a kind of synthetic evil.

Those three paragraphs might be the most succinct critique of unfettered capitalism I’ve come across. The invisible hand as a paperclip maximiser.

Like I said, it’s a fascinating document. In fact I realised that I should probably store a copy of it for myself.

I have a section of my site called “extras” where I dump miscellaneous stuff. Most of it is unlinked. It’s mostly for my own benefit. That’s where I’ve put my copy of A Few Notes On The Culture.

Here’s a funny thing …for all the times that I’ve revisited the link, I never knew anything about the site is was hosted on—vavatch.co.uk—so this most recent time, I did a bit of clicking around. Clearly it’s the personal website of a sci-fi-loving college student from the early 2000s. But what came as a revelation to me was that the site belonged to …Adrian Hon!

I’m impressed that he kept his old website up even after moving over to the domain mssv.net, founding Six To Start, and writing A History Of The Future In 100 Objects. That’s a great snackable book, by the way. Well worth a read.

Saturday, July 24th, 2021

Back to the Future with RSS

Nicky Case on RSS:

Imagine an open version of Twitter or Facebook News Feed, with no psy-op ads, owned by no oligopoly, manipulated by no algorithm, and all under your full control.

Imagine a version of the newsletter where you don’t have to worry about them selling your email to scammers, labyrinth-like unsubscribe pages, or stuffing your inbox with ever more crap.

Tuesday, July 6th, 2021

Don’t Feed the Thought Leaders - Earthly Blog

A great tool is not a universal tool it’s a tool well suited to a specific problem.

The more universal a solution someone claims to have to whatever software engineering problem exists, and the more confident they are that it is a fully generalized solution, the more you should question them.

Monday, June 28th, 2021

A Lifetime of Systems Thinking - The Systems Thinker

I don’t agree with all of the mythbusting in this litany of life lessons, but this one is spot on:

The best thing that can be done to a problem is to solve it. False. The best thing that can be done to a problem is to dissolve it, to redesign the entity that has it or its environment so as to eliminate the problem.

Remember that next time you’re tempted to solve a problem by throwing more code at it.

Saturday, May 22nd, 2021

150

The fact that so many people publish their thoughts and share knowledge, is something I’ve always loved about the web. Whether it is practical stuff about how to solve a coding issue or some kind of opinion… everyone’s brain is wired differently. It may resonate, it may not, that’s also fine.

Wednesday, May 12th, 2021

Google Workspace Updates: Google Docs will now use canvas based rendering: this may impact some Chrome extensions

Yikes!

We’re updating the way Google Docs renders documents. Over the course of the next several months, we’ll be migrating the underlying technical implementation of Docs from the current HTML-based rendering approach to a canvas-based approach to improve performance and improve consistency in how content appears across different platforms.

I’ll be very interested to see how they handle the accessibility of this move.

Tuesday, May 11th, 2021

Work at Clearleft

A little while back, I wrote about how much I like the job description of a design engineer. I still have issues with the “engineer” part, but overall it’s a great way to describe a front-end developer who works on the front of the front end: the outputs that end users interact with: HTML, CSS, and JavaScript. If it’s delivered in a web browser, then it’s design engineering.

Perhaps you also prefer the front of the front end to the back of the front end. Perhaps you also like to spend your time thinking about resilience, performance, and accessibility rather than build pipelines and frameworks. Perhaps you’d like to work with like-minded people.

Clearleft is hiring a midweight design engineer. Perhaps it’s you.

If you’d like to use your development talents in the service of good design, you should apply. And remember, you’d be working for yourself: Clearleft is an employee-owned agency.

You don’t have to be based in Brighton. You can work remotely, although we’re expecting that a monthly face-to-face gathering will become the norm after The Situation ends. So if you’re based somewhere like London, that would work out nicely. That said, if you’re based somewhere like London, this might also be the ideal opportunity to make a move to the seaside.

You do have to be eligible to work in the UK. Alas, that pool has shrunk somewhat. Thanks, Brexit.

Perhaps you think you’re not qualified. Apply anyway. You’ve got nothing to lose.

Perhaps this role isn’t for you, but you know someone who might fit the bill. Please tell them. Spread the word.

We’d especially love to hear from people under-represented in design and technology.

Come and work with us.

Monday, May 10th, 2021

The web we choose to build. Principles for user-centred front-end development by Colin Oakley

I was really chuffed to see some posts of mine referenced in this rather excellent piece about design principles for front-end development.

Thursday, April 22nd, 2021

Midweight Design Engineer | Clearleft

Want to work with me? If so, come and be a design engineer at Clearleft!

What’s a design engineer? A front-end developer at the front of the front end who values accessibility, performance, and progressive enhancement.

We’re looking for a design-friendly front-end developer with demonstrable skills in pattern-based prototyping and production to join our friendly and supportive team in the heart of Brighton.

Even if this isn’t for you, please spread the word …especially to potential candidates who aren’t mediocre middle-aged white dudes (I’ve already got that demographic covered).

Tuesday, April 6th, 2021

Of the web

I’m subscribed to a lot of blogs in my RSS reader. I follow some people because what they write about is very different to what I know about. But I also follow lots of people who have similar interests and ideas to me. So I’m not exactly in an echo chamber, but I do have the reverb turned up pretty high.

Sometimes these people post thoughts that are eerily similar to what I’ve been thinking about. Ethan has been known to do this. Get out of my head, Marcotte!

But even if Ethan wasn’t some sort of telepath, he’d still be in my RSS reader. We’re friends. Lots of the people in my RSS reader are my friends. When I read their words, I can hear their voices.

Then there are the people I’ve never met. Like Desirée García, Piper Haywood, or Jim Nielsen. Never met them, don’t know them, but damn, do I enjoy reading their blogs. Last year alone, I ended up linking to Jim’s posts ten different times.

Or Baldur Bjarnason. I can’t remember when I first came across his writing, but it really, really resonates with me. I probably owe him royalties for the amount of times I’ve cited his post Over-engineering is under-engineering.

His latest post is postively Marcottian in how it exposes what’s been fermenting in my own mind. But because he writes clearly, it really helps clarify my own thinking. It’s often been said that you should write to figure out what you think, and I can absolutely relate to that. But here’s a case where somebody else’s writing really helps to solidify my own thoughts.

Which type of novelty-seeking web developer are you?

It starts with some existentialist stock-taking. I can relate, what with the whole five decades thing. But then it turns the existential questioning to the World Wide Web itself, or rather, the people building the web.

In a way, it’s like taking the question of the great divide (front of the front end and back of the front end), and then turning it 45 degrees to reveal an entirely hidden dimension.

In examining the nature of the web, he hits on the litmus of how you view encapsulation:

I mention this first as it’s the aspect of the web that modern web developers hate the most without even giving it a label. Single-Page-Apps and GraphQL are both efforts to eradicate the encapsulation that’s baked into the foundation of every layer of the web.

Most modern devs are trying to get rid of it but it’s one of the web’s most strategic advantages.

I hadn’t thought of this before.

By default, if you don’t go against the grain of the web, each HTTP endpoint is encapsulated from each other.

Moreover, all of this can happen really fast if you aren’t going overboard with your CSS and JS.

He finishes with a look at another of the web’s most powerful features: distribution. In between are the things that make the web webby: hypertext and flexibility (The Dao of the Web).

It’s the idea that the web isn’t a single fixed thing but a fluid multitude whose shape is dictated by its surroundings.

This resonates with me because it highlights two different ways of viewing the web.

On the one hand, you can see the web purely as a distribution channel. In the past you might have been distributing a Flash movie. These days you might be distributing a single page app. Either way, the web is there as a low-friction way of getting your creation in front of other people.

The other way of building for the web is to go with the web’s grain, embracing flexibility and playing to the strengths of the medium through progressive enhancement. This is the distinction I was getting at when I talked about something being not just on the web, but of the web.

With that mindset, Baldur then takes us through some of the technologies that he’s excited about, like SvelteKit and Hotwire. I think it’s the same mindset that got me excited about service workers. As Baldur says:

They are helping the web become better at being its own thing.

That’s my tagline right there.

Web Browser Engineering

It’s heavy on computer science, but this is a fascinating endeavour. It’s a work-in-progress book that not only describes how browsers work, but invites you to code along too. At the end, you get a minimum viable web browser (and more knowledge than you ever wanted about how browsers work).

As a black box, the browser is either magical or frustrating (depending on whether it is working correctly or not!). But that also make a browser a pretty unusual piece of software, with unique challenges, interesting algorithms, and clever optimizations. Browsers are worth studying for the pure pleasure of it.

See how the sausage is made and make your own sausage!

This book explains, building a basic but complete web browser, from networking to JavaScript, in a thousand lines of Python.

Tuesday, March 23rd, 2021

Service worker weirdness in Chrome

I think I’ve found some more strange service worker behaviour in Chrome.

It all started when I was checking out the very nice new redesign of WebPageTest. I figured while I was there, I’d run some of my sites through it. I passed in a URL from The Session. When the test finished, I noticed that the “screenshot” tab said that something was being logged to the console. That’s odd! And the file doing the logging was the service worker script.

I fired up Chrome (which isn’t my usual browser), and started navigating around The Session with dev tools open to see what appeared in the console. Sure enough, there was a failed fetch attempt being logged. The only time my service worker script logs anything is in the catch clause of fetching pages from the network. So Chrome was trying to fetch a web page, failing, and logging this error:

The service worker navigation preload request failed with a network error.

But all my pages were loading just fine. So where was the error coming from?

After a lot of spelunking and debugging, I think I’ve figured out what’s happening…

First of all, I’m making use of navigation preloads in my service worker. That’s all fine.

Secondly, the website is a progressive web app. It has a manifest file that specifies some metadata, including start_url. If someone adds the site to their home screen, this is the URL that will open.

Thirdly, Google recently announced that they’re tightening up the criteria for displaying install prompts for progressive web apps. If there’s no network connection, the site still needs to return a 200 OK response: either a cached copy of the URL or a custom offline page.

So here’s what I think is happening. When I navigate to a page on the site in Chrome, the service worker handles the navigation just fine. It also parses the manifest file I’ve linked to and checks to see if that start URL would load if there were no network connection. And that’s when the error gets logged.

I only noticed this behaviour because I had specified a query string on my start URL in the manifest file. Instead of a start_url value of /, I’ve set a start_url value of /?homescreen. And when the error shows up in the console, the URL being fetched is /?homescreen.

Crucially, I’m not seeing a warning in the console saying “Site cannot be installed: Page does not work offline.” So I think this is all fine. If I were actually offline, there would indeed be an error logged to the console and that start_url request would respond with my custom offline page. It’s just a bit confusing that the error is being logged when I’m online.

I thought I’d share this just in case anyone else is logging errors to the console in the catch clause of fetches and is seeing an error even when everything appears to be working fine. I think there’s nothing to worry about.

Update: Jake confirmed my diagnosis and agreed that the error is a bit confusing. The good news is that it’s changing. In Chrome Canary the error message has already been updated to:

DOMException: The service worker navigation preload request failed due to a network error. This may have been an actual network error, or caused by the browser simulating offline to see if the page works offline: see https://w3c.github.io/manifest/#installability-signals

Much better!

Tuesday, March 2nd, 2021

There’s a voice inside your head that prevents you from sharing ideas—punch it in the face. - Airbag Industries

Violence is never the answer, unless you’re dealing with nazis or your inner critic.

The excuses—or, I’m sorry, reasons—I hear folks say they can’t write include: I’m not very good at writing (you can’t improve if you don’t write often), my website isn’t finished (classic, and also guilty so shut up), and I don’t know what to write about, there’s nothing new for me to add (oh boy).

Sunday, February 28th, 2021

Robin Rendle ・ Inheritance

My work shouldn’t be presented in the Smithsonian behind glass or anything, I’m just pointing at this enormous flaw in the architecture of the web itself: you’re renting servers and renting URLs. Nothing is permanent because on the web we don’t really own any space, we’re just borrowing land temporarily.

Tuesday, February 23rd, 2021

239: New CSS Tricks and Design Engineers | CSS-Tricks

We need engineers, we need designers, and we absolutely need design engineers to make that connection across the great divide between the front-of-the-front-end and the back-of-the-front-end. It’s only then that we can make truly great things together.

Friday, February 19th, 2021

Design Engineering - Snook.ca

Here’s a seven-year old post by Snook—this design engineer thing is not new.

Design engineer

It’s been just over two years since Chris wrote his magnum opus about The Great Divide. It really resonated with me, and a lot of other people.

The crux of it is that the phrase “front-end development” has become so broad and applies to so many things, that it has effectively lost its usefulness:

Two front-end developers are sitting at a bar. They have nothing to talk about.

Brad nailed the differences in responsibilities when he described them as front-of-the-front-end and back-of-the-front-end web development:

A front-of-the-front-end developer is a web developer who specializes in writing HTML, CSS, and presentational JavaScript code.

A back-of-the-front-end developer is a web developer who specializes in writing JavaScript code necessary to make a web application function properly.

In my experience, the term “full stack developer” is often self-applied by back-of-the-front-end developers who perhaps underestimate the complexity of front-of-the-front development.

Me, I’m very much a front-of-the-front developer. And the dev work we do at Clearleft very much falls into that realm.

This division of roles and responsibilities reminds me of a decision we made in the founding days of Clearleft. Would we attempt to be a full-service agency, delivering everything from design to launch? Or would we specialise? We decided to specialise, doubling down on UX design, which was at the time an under-served area. But we still decided to do front-end development. We felt that working with the materials of the web would allow us to deliver better UX.

We made a conscious decision not to do back-end development. Partly it was a question of scale. If you were a back-end shop, you probably had to double down on one stack: PHP or Ruby or Python. We didn’t want to have to turn away any clients based on their tech stack. Of course this meant that we had to partner with other agencies that specialised in those stacks, and that’s what we did—we had trusted partners for Drupal development, Rails development, Wordpress development, and so on.

The world of front-end development didn’t have that kind of fragmentation. The only real split at the time was between Flash agencies and web standards (HTML, CSS, and JavaScript).

Overall, our decision to avoid back-end development stood us in good stead. There were plenty of challenges though. We had to learn how to avoid “throwing stuff over the wall” at whoever would be doing the final back-end implementation. I think that’s why we latched on to design systems so early. It was clearly a better deliverable for the people building the final site—much better than mock-ups or pages.

Avoiding back-end development meant we also avoided long-term lock-in with maintainence, security, hosting, and so on. It might sound strange for an agency to actively avoid long-term revenue streams, but at Clearleft it’s always been our philosophy to make ourselves redundant. We want to give our clients everything they need—both in terms of deliverables and knowledge—so that they aren’t dependent on us.

That all worked great as long as there was a clear distinction between front-end development and back-end development. Front-end development was anything that happened in a browser. Back-end development was anything that happened on the server.

But as the waters muddied and complex business logic migrated from the server to the client, our offering became harder to clarify. We’d tell clients that we did front-end development (meaning we’d supply them with components formed of HTML, CSS, and JavaScript) and they might expect us to write application logic in React.

That’s why Brad’s framing resonated with me. Clearleft does front-of-front-end development, but we liaise with our clients’ back-of-the-front-end developers. In fact, that bridging work—between design and implementation—is where devs at Clearleft shine.

As much as I can relate to the term front-of-front-end, it doesn’t exactly roll off the tongue. I don’t expect it to be anyone’s job title anytime soon.

That’s why I was so excited by the term “design engineer,” which I think I first heard from Natalya Shelburne. There’s even a book about it and the job description sounds very much like the front-of-the-front-end work but with a heavy emphasis on the collaboration and translation between design and implementation. As Trys puts it:

What I love about the name “Design Engineer”, is that it’s entirely focused on the handshake between those two other roles.

There’s no mention of UI, CSS, front-end, design systems, documentation, prototyping, tooling or any ‘hard’ skills that could be used in the role itself.

Trys has been doing some soul-searching and has come to the conclusion “I think I might be a design engineer…”. He has also written on the Clearleft blog about how well the term describes design and development at Clearleft.

Personally, I’m not a fan of using the term “engineer” to refer to anyone who isn’t actually a qualified engineer—I explain why in my talk Building—but I accept that that particular ship has sailed. And the term “design developer” just sounds odd. So I’m all in using the term “design engineer”.

I can imagine this phrase being used in a job ad. It could also be attached to levels: a junior design engineer, a mid-level design engineer, a senior design engineer; each level having different mixes of code and collaboration (maybe a head of design enginering never writes any code).

Trys has written a whole series of posts on the nitty-gritty work involved in design engineering. I highly recommend reading all of them: