Gilles Crofils

Gilles Crofils

Hands-On Chief Technology Officer

Based in Western Europe, I'm a tech enthusiast with a track record of successfully leading digital projects for both local and global companies.1974 Birth.
1984 Delved into coding.
1999 Failed my First Startup in Science Popularization.
2010 Co-founded an IT Services Company in Paris/Beijing.
2017 Led a Transformation Plan for SwitchUp in Berlin.
August 2025 Eager to Build the Next Milestone Together with You.

Abstract:

The article addresses the problem many tech professionals face of feeling overwhelmed by endless backlogs of saved articles, tutorials, and courses, resulting from a “just-in-case” approach to learning that often leads to stress and burnout without real benefit. It proposes a minimalist, just-in-time (JIT) learning strategy, where new skills are acquired only as real project demands arise, making learning more relevant, memorable, and sustainable. Drawing on research and practical advice, the article outlines how to spot true learning triggers, organize tasks using tools like Kanban boards and digital note systems, and establish feedback loops and regular reviews to maintain focus and prevent overload. It includes distinctive examples, such as a freelance developer efficiently learning only what’s needed for a client’s payment API and the author’s personal experience of finding more time for hobbies like gardening and carpentry after moving from Berlin to Lisbon and adopting this minimalist approach. The article also offers tips for handling FOMO, managing curiosity through “someday/maybe” lists and scheduled exploration time, and emphasizes that minimalist JIT learning not only boosts productivity and adaptability but also supports long-term well-being and a richer life outside of work.

Ever feel like your reading list is plotting against you? I know this habit all too well—saving articles, bookmarking tutorials, and promising myself I’ll read them soon. Sometimes, it feels like learning is a full-time job on its own, adding clutter and stress to my day. Chasing every new tool or framework “just in case” is tiring, and still, I end up feeling behind. But I’ve found there’s a way to stay sharp without feeling overloaded.

Let me share why just-in-case learning often backfires for me, and how a minimalist, just-in-time approach helps me regain focus. I’ve seen how constant upskilling leads to burnout, and why learning what I need, when I need it, finally makes progress feel doable. I’ll walk through practical steps for spotting real learning triggers, keeping tasks simple, and building feedback loops that actually help.

Along the way, I’ll show how I organize my learning, deal with FOMO, and keep curiosity alive without letting it take over my day. Humor and honesty help me out, with a focus on what really works when balancing tech, projects, and a life beyond the screen.

Why just-in-case learning leads to overload

The curse of endless backlogs

Many tech professionals, myself included, end up with a huge list of saved articles, bookmarked courses, and certifications set aside for “some day.” The backlog grows quickly. Just managing it becomes an unpaid side gig. It’s more than a long to-do list—it drains my focus and energy. Collecting learning “just in case” seems productive at first, but it often distracts from what matters most.

Honestly, it’s a bit of a mess sometimes, but that’s how I keep learning fun. I notice this way of working clashes with minimalist habits that help me stay effective.

Constantly adding to these lists causes information overload. Trying to keep up with the latest tools or frameworks brings real anxiety, especially for solo professionals. For example, as an independent developer juggling gigs and projects, I’ve felt exhausted trying to catch up. Most of this learning effort is never used anyway.

Often, knowledge picked up “just in case” is forgotten before I need it. Research suggests that if new info isn’t used soon, it’s quickly lost—all those hours prepare me for a “someday” that rarely comes. This overload then turns into burnout instead of expertise.

Burnout from always-on upskilling

Always being expected to learn and master new tools leads to chronic tiredness. Many developers, myself included, feel behind even after working hard all day. For independents, with no formal support, it’s harder still. The pressure to always upskill gradually drains motivation and well-being, squeezing out real growth or satisfaction.

I remember during my transition from Berlin to Beijing, I was constantly jumping between new frameworks and languages, thinking I had to know everything to stay relevant. I burned out hard—my evenings were spent doom-scrolling through tutorials, and my weekends disappeared into half-finished side projects. I lost track of what I actually wanted to build, and my energy for client work dropped. It took a while (and a few missed deadlines) to realize I needed to set boundaries and focus only on what was truly urgent or valuable.

Solo tech workers rarely have support systems or clear limits. Without those boundaries, the push to keep up drains energy fast. That’s why independents like me are more at risk for burnout from endless learning demands. A minimalist approach cuts through the noise and focuses only on what is truly urgent or valuable.

Minimalism starts with one question: what is most essential right now? Letting go of the rest isn’t just efficient—it’s vital for long-term wellbeing in tech. So instead of just-in-case learning, I turn to just-in-time learning.

The power of just-in-time learning

What just-in-time learning really means

Just-in-time (JIT) learning means picking up new info only when it’s needed for a real, current task. The idea is borrowed straight from lean manufacturing—resources are “pulled” as needed, not stored up (Womack & Jones, 1996; Ohno, 1988). In tech, this looks like skipping the growing backlog and focusing only on what’s next. I keep just the right tools for the job at hand, not every tool I might one day need.

For knowledge workers, JIT learning means ignoring the big pile of tutorials and focusing on what a project or client actually demands. That limits wasted time and effort, and keeps me focused on what matters—not on “what if” scenarios.

JIT learning helps me remember more because I use new skills right away. It’s less time lost reviewing what I forgot from months ago. But does it really work better? Let’s see.

Why JIT learning works better

Research says knowledge gained just before I need it is much more likely to stick. It’s like learning on the job instead of cramming for a test—when I use information at once, it actually helps. Organizations that swap to JIT learning often find stronger performance and less waste (Choi & Jacobs, 2011; Sitzmann et al., 2010).

Companies using JIT learning say they see better outcomes: stronger performance, less wasted training, and happier teams. For independent tech workers like me, it means lower stress and more time for actual projects or life outside work. Plus, I stay nimble in a field where things change every week (ATD, 2018; Kyndt et al., 2019).

JIT learning keeps my eyes on real needs, not every passing trend. This makes it easier to adapt when priorities shift. When learning is for real-world needs, not for “just in case,” staying adaptable feels much easier. To build a JIT system, I start with the next steps.

Building my minimalist JIT learning system

Spotting what really triggers learning

A minimalist JIT system starts by spotting when I truly need new skills. These learning “triggers” often show up as real project demands—a feature a client has asked for, a change in the tech stack, or a missing skill from a project review. Sometimes, they show up elsewhere:

  • A new project with unfamiliar requirements (Wiegers, 2022)
  • Sudden changes in client needs or priorities (PMI Pulse of the Profession)
  • Gaps discovered during a solo project review

Learning works best when it is tied to immediate, concrete needs.

Paying attention to the environment helps me spot outside signals. Watching market trends or taking client feedback can show when I need to learn something specific. For example, customer comments (Ries, 2011) might highlight an area worth upskilling—so my learning stays timely.

Self-checks and quick feedback sessions help too. Regular self-assessments or brief peer feedback can expose skill gaps before they turn into problems (Deloitte, 2023; Derby & Larsen, 2006). This kind of feedback keeps learning focused, not scattered.

Here’s where I use the skill-scan method for annual self-assessment. Once a year, I sit down and map out the skills I actually used, the ones I needed but didn’t have, and the gaps that slowed me down. This helps me plan my learning for the year ahead, so I don’t waste time on things that aren’t relevant. The skill-scan fits perfectly with minimalist learning—it’s a reality check that keeps my focus sharp and my backlog small.

Once I know what to learn, I need a simple way to track it.

Keeping learning tasks simple and visible

A personal Kanban board—on paper or an app—makes tracking tasks easy. I set up columns like “To Learn,” “Learning,” and “Done,” moving tasks across as I go. This helps me limit how many things I work on, keeps overload in check, and makes next steps clear. Visual tools like this are great for controlling multitasking (Personal Kanban Basics; Troy Magennis, Kanban University).

Keeping a journal or log also helps. Writing down what I tried or learned, what worked, and what didn’t creates a feedback loop. A few quick notes after a focused learning session help me see patterns and improve over time (Julia Evans, learning logs; ATD review templates).

With digital notes, I can easily revisit important lessons later. Tools like Notion or Obsidian, with tags and backlinks, mean I can pull up old notes quickly for a similar challenge. This keeps me from having to relearn the same thing twice—organized notes are a big help when juggling projects (Zettelkasten/Digital Note-Taking; Tiago Forte, PARA method).

Making feedback part of my routine

After each focused learning sprint, a short review keeps my process sharp. That can be as basic as asking:

  • What went well?
  • What didn’t?
  • What could I try differently?

Short reviews help me spot small wins or blockers (Derby & Larsen, 2006; Atlassian retrospective templates). Peer feedback adds value too.

Even informal peer reviews bring fresh insights and help me catch blind spots. Sharing what I learned with a friend or group reinforces my knowledge and helps me notice things I missed (Huisman et al., 2019; Lu & Law, 2012). Feedback loops like these make my system easier to improve.

A flexible, feedback-driven learning system is easier to stick with and gets better over time. I drop what isn’t working and build on what is (Black & Wiliam, 2009; Nicol, 2007). Now, let’s see how this system works on real projects.

Learning sprints for real projects

Running focused learning sprints

Using agile-style sprints for learning works best when each one is tied to a real, current project goal. For example, learning a new API to deliver a client feature. These sprints are time-limited—often one to two weeks—and are focused on just the minimum knowledge required. Breaking work into simple steps helps prevent overwhelm.

Learning a new payment integration might mean: day one with docs, day two prototyping, day three using it in the project.

A manageable sprint breaks down like this:
- Research essentials (read docs or examples)
- Apply what’s learned right away
- Review and fix any issues

A Kanban board makes it easy to see progress and spot blockers. Storing important notes and resources at the end of each sprint means I’ve got a head start next time.

At the end, archiving my notes and links in a digital system builds a small, useful personal knowledge base. Now, future projects benefit from what I already learned.

Upskilling fast: a freelance developer’s story

Suppose I’m a freelance dev asked to add a payment API I haven’t used before. Rather than taking a full course, I dedicate two focused days to reading docs, checking out code samples, and making a quick prototype. This targeted, time-boxed learning solves the actual need and avoids sidetracks. After it’s done, I capture the steps and solutions found in a digital note.

Writing down the main steps, challenges, and solutions in Notion or Obsidian means that if a similar integration comes up, the work is half done.

This way saves time, lessens mental clutter, and grows a knowledge base with every project. Over time, minimalist just-in-time learning makes each new challenge easier. Still, it’s normal to worry about missing out on lots of other learning options out there.

Letting go of learning FOMO

Pruning my learning queue

A minimalist system works best when it’s cleaned up often. I look at my backlog—old courses, saved articles, newsletters—and delete or unsubscribe from anything not useful for current goals. This frees up mental space and sharpens my focus. Here’s my simple checklist:
- Scan my backlog for old or unused stuff
- Sort what’s left by importance
- Unsubscribe from newsletters that don’t help much

This regular clean-up means my queue is never overwhelming (Ruiz et al., 2006).

Capping active learning tasks helps too. I use Kanban WIP (work-in-progress) limits, or stick with the top five tasks this week. Everything else can wait. This simple trick keeps overwhelm out and energy in the right place (Benson & DeMaria Barry, 2011; Koch, 1998).

Regular audits—every month or so—keep learning organized. I review what is still relevant and remove the rest, opening up room for future challenges (Dunlosky et al., 2013). But pruning only works well alongside the right mindset.

As someone who has balanced freelance projects with bootstrapping companies, I know how easy it is to let learning tasks eat into billable hours. Sometimes, I have to remind myself: if it’s not helping me ship a project or land a client, it can wait. This helps to keep the focus, yes, but sometimes, I find myself still distracted.

Mindset: from everything to enough

Being mindful and reflecting on my progress helps me shift from worrying about what’s missing to being satisfied with what I’ve learned. Practicing gratitude for current skills helps ease the urge to keep adding more. Choosing learning goals based on real projects or personal values, not outside pressure or the latest trend, makes it easier to ignore distractions (SMART goals; Rozgonjuk et al., 2021; Przybylski et al., 2013).

Digital boundaries help too. Muting notifications or setting a scheduled check-in for new content avoids endless scrolling or comparison. With this structure, learning is about what matters now, not what everyone else is chasing (Liu et al., 2022; APA, 2020). Curiosity still matters, but it needs a little structure.

Keeping curiosity alive without the clutter

Organizing future learning without stress

A “someday/maybe” list—on paper or in an app—can be a lifesaver for the curious. Instead of letting every cool idea swirl in my head, I note it down here. This simple act clears my mind and shrugs off the pressure to follow every idea right away (Allen, 2001; Masicampo & Baumeister, 2011). Notion lets me quickly throw a “maybe later” tag onto something interesting so I can return when it matters.

Digital tools like Notion or Evernote are perfect for this. I tag and organize ideas by project or skill. Once a month, I review my list—clear out what’s no longer interesting and sort the rest (Sellen & Harper, 2002; Oulasvirta & Salovaara, 2004). This habit keeps my someday list helpful and not another backlog.

When I review, I use a checklist: archive old stuff, delete anything I’ve lost interest in, and group the rest (Mark et al., 2012; Miller, 1956). Curiosity is good, but it works best with a little structure.

Staying curious with boundaries

Curiosity is powerful for tech pros, but too much can distract from real work. I set aside a weekly “curiosity hour”—guilt-free time to chase new ideas, read, or experiment. The rest of the week, tempting ideas land on the someday list. Not every idea needs to be followed right away—give my brain a creative play area, but put up a fence for safety. During that window, making a mind map can spark new thoughts, while the rest of the time stays focused (Farrand et al., 2002).

It’s also helpful to accept not every interesting topic needs my focus now. Trusting my system helps me let go of FOMO, knowing my notes will remind me later. This makes learning lighter and more fun—less like another chore. Tagging ideas lets me catch up when they fit my needs.

Organizing curiosity this way keeps it alive and turns learning into a boost, not a burden. Digital lists and reviews help turn curiosity into inspiration—ready when I am, but never cluttering my head.

Templates and workflows for minimalist JIT learning

A simple workflow for just-in-time learning

A minimalist just-in-time learning workflow is simple and easy to repeat for each challenge. Here’s how it looks:

  1. Spot a real, immediate need triggered by a project or a client.
  2. Collect only what’s essential for that job, skipping “just in case” extras.
  3. Block time to learn and apply the new skill straight away, using it on a real task.
  4. Reflect on what worked, what didn’t, and note key lessons.
  5. Archive notes and resources for future use, so I won’t start from scratch next time.

I do this each time a new need pops up to keep skills fresh and relevant. Adding templates can make tracking even smoother.

Visual tools and templates for tracking learning

Kanban boards—using columns like “To Learn,” “Learning,” “Reviewing,” and “Completed”—give a clear picture of my progress and keep multitasking under control. Being able to see where each task stands makes it much easier to stay focused.

A sprint review worksheet lets me jot down learning goals, tasks done, blockers, and what I learned. This helps me improve my process next time.

  • List goals for the sprint
  • Write finished tasks and blockers
  • Capture lessons and any tweaks to try

A learning journal is just a short note on the date, topic, what I tried, and any quick thoughts. Journaling helps me remember more and spot patterns that lead to better learning with less stress.

The minimalist’s edge in tech

Minimalist learning keeps me nimble and balanced

A minimalist, just-in-time approach helps me adapt easily to new work without getting lost in information I never need. By focusing on what matters now, I avoid overload, lower stress, and keep my confidence up. This also leaves more space for life away from the screen, adding room for satisfaction and even a little relaxation. Research and expert observations agree: minimalist, self-directed learning goes hand-in-hand with job satisfaction and work-life balance.

More space for creativity and life outside work

Clearing away mental clutter brings space for hobbies or creativity. After my move from Berlin to Lisbon, slowing down and only learning what was needed made work lighter. In Berlin, I was always chasing the next framework, but in Lisbon, I learned to slow down and focus only on what mattered for my projects. I suddenly had more energy for gardening and carpentry—both hobbies that became new favorites. My years in high-paced tech jobs taught me that minimalist learning isn’t just about being efficient; it also makes life after work much richer.

Sustainable growth without the usual stress

Most important, this approach lasts. Minimalist, just-in-time learning prevents burnout, keeps curiosity alive, and helps me stay current—without the grind. Growth feels steady and satisfying, making it easier to enjoy both work and life in the long run.

I learned this lesson the hard way when I co-founded a science popularization company. At first, I tried to master every new marketing tool and analytics platform, thinking it would give us an edge. Instead, I ended up overwhelmed, and our team lost focus. Only when I started applying minimalist learning—focusing on the tools that actually moved the needle—did things improve. The same thing happened with my cross-border e-commerce platform: chasing every trend nearly sank us, but narrowing my learning to what mattered kept the business afloat.

For me, adopting minimalist learning has made both my work and life lighter—maybe it can do the same for you.

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25 Years in IT: A Journey of Expertise

2024-

My Own Adventures
(Lisbon/Remote)

AI Enthusiast & Explorer
As Head of My Own Adventures, I’ve delved into AI, not just as a hobby but as a full-blown quest. I’ve led ambitious personal projects, challenged the frontiers of my own curiosity, and explored the vast realms of machine learning. No deadlines or stress—just the occasional existential crisis about AI taking over the world.

2017 - 2023

SwitchUp
(Berlin/Remote)

Hands-On Chief Technology Officer
For this rapidly growing startup, established in 2014 and focused on developing a smart assistant for managing energy subscription plans, I led a transformative initiative to shift from a monolithic Rails application to a scalable, high-load architecture based on microservices.
More...

2010 - 2017

Second Bureau
(Beijing/Paris)

CTO / Managing Director Asia
I played a pivotal role as a CTO and Managing director of this IT Services company, where we specialized in assisting local, state-owned, and international companies in crafting and implementing their digital marketing strategies. I hired and managed a team of 17 engineers.
More...

SwitchUp Logo

SwitchUp
SwitchUp is dedicated to creating a smart assistant designed to oversee customer energy contracts, consistently searching the market for better offers.

In 2017, I joined the company to lead a transformation plan towards a scalable solution. Since then, the company has grown to manage 200,000 regular customers, with the capacity to optimize up to 30,000 plans each month.Role:
In my role as Hands-On CTO, I:
- Architected a future-proof microservices-based solution.
- Developed and championed a multi-year roadmap for tech development.
- Built and managed a high-performing engineering team.
- Contributed directly to maintaining and evolving the legacy system for optimal performance.
Challenges:
Balancing short-term needs with long-term vision was crucial for this rapidly scaling business. Resource constraints demanded strategic prioritization. Addressing urgent requirements like launching new collaborations quickly could compromise long-term architectural stability and scalability, potentially hindering future integration and codebase sustainability.
Technologies:
Proficient in Ruby (versions 2 and 3), Ruby on Rails (versions 4 to 7), AWS, Heroku, Redis, Tailwind CSS, JWT, and implementing microservices architectures.

Arik Meyer's Endorsement of Gilles Crofils
Second Bureau Logo

Second Bureau
Second Bureau was a French company that I founded with a partner experienced in the e-retail.
Rooted in agile methods, we assisted our clients in making or optimizing their internet presence - e-commerce, m-commerce and social marketing. Our multicultural teams located in Beijing and Paris supported French companies in their ventures into the Chinese market

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