Gilles Crofils

Gilles Crofils

Hands-On Chief Technology Officer

Tech leader who transforms ambitious ideas into sustainable businesses. Successfully led digital transformations for global companies while building ventures that prioritize human connection over pure tech.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.
November 2025 Launched Nook.coach. Where conversations shape healthier habits

Build health habits that work when your workday never ends

Abstract:

The article explains why “after work” health habits often collapse in remote and hybrid jobs: modern knowledge work erases the clean boundaries—commutes, office exits, real lunch breaks—that habit advice quietly relies on, leaving people stuck in a half-on “standby mode” where Slack pings at 6:12, meetings run five minutes late into the next one, and a supposedly free calendar gap gets eaten by follow-ups, messages, and tab-reopening. Instead of treating this as a motivation or character flaw, it frames it as a configuration problem centered on a missing “commit point,” the reliable, socially allowed moment when switching modes is safe; when that trigger is fuzzy (a mood like “after work”) or only exists on screen (the “calendar mirage”), plans fail predictably because work is pause-safe while exercise, cooking, and leaving the desk carry setup, interruption, and reentry costs (clothes, travel, showers, and the stress of seeming unreachable). The fix is to “debug” the failing habit by identifying the exact cue it depended on and replacing it with pause-safe, low-friction formats that work even when the day won’t end cleanly—short walking breaks between calls, 2-minute movement breaks to interrupt sitting, 6–12 minute strength micro-sessions, quick outside loops that end at the front door, and protein-plus-fiber desk meals—then run a simple five-day notice-only experiment tracking which boundaries truly occur and how often pings or late meetings erase planned health blocks, so habits are designed for messy reality rather than a perfect Tuesday.

Your calendar says the workday ended. Your phone disagrees.

A meeting runs 5 minutes late, then the next one starts 3 minutes early, and somehow you spend the “gap” answering 2 pings and reopening 6 tabs. By the time you look up, the only thing that feels realistic is staying at the desk. Not because you are lazy. Because the day has no clean edges anymore.

Most habit advice quietly depends on doors. Commute. Lunch break. Leaving the office. Arriving home. Even “after breakfast” assumes the same place, same time, same rhythm. Remote and hybrid work blur those boundaries, and then the habit that was supposed to start “after work” never gets a real start signal. It becomes a mood. And moods are not reliable triggers.

This article is for that exact problem. Not motivation. Configuration.

You will get a practical way to spot the missing piece, the commit point your plan depended on, plus a few options that still work when your day stays in standby mode. We will cover

  • why knowledge work breaks the usual habit cues and keeps your brain half-on
  • the calendar mirage, when “free time” exists on screen but not in lived minutes
  • why health loses to work because it is not pause-safe
  • how to debug a habit that keeps failing without turning it into a personality trial
  • simple formats that survive messy days like short movement blocks, micro strength, and low-friction food defaults

The goal is not to turn you into a different person. It is to build habits that can run even when Slack is still warm and the day refuses to end properly.

Your day has no clean edges

A day that never fully ends

Slack pings at 6:12. Laptop still open. Calendar says the last meeting ended at 5, but the thread is still alive, and so is your brain. You close 1 tab, 4 more are half-open. That missing “end” matters because most health habits are built to start right there.

A useful word for this missing edge is a commit point. It is a reliable moment where switching modes is safe and socially allowed, like leaving the office building, sitting down for a real lunch break, stepping into a commute, or arriving home and putting keys on the table. Older routines created these anchors without much effort.

The problem now is simpler than it looks: the day keeps leaking into the evening. And when you’ve been at a desk all day, you feel it in the body before you “reason” it—upper back tightness, the slightly clenched jaw, the kind of tired that still can’t stop refreshing inbox. Some nights, work even drifts past midnight, and then it’s obvious there was no real mode switch at all.

Habits tend to attach to stable cues (Wood & Neal, 2007). When the cue disappears, you don’t get a clean automatic start—you get a bunch of manual starts, over and over.

Most habit advice assumes a day with doors

The plan assumes a boundary that never shows up

A lot of habit advice assumes your day has hard borders. Commute starts. Lunch break happens. You leave the office. You arrive home. Even “after breakfast” is in the same kitchen at the same time.

That is not a personality issue. It is a dependency.

Remote and hybrid work make edges softer. A meeting that runs “just 5 minutes” late turns into a chain reaction. A “quick follow-up” becomes 20 more tabs. A late ping arrives and you are back in work mode while standing next to the fridge. Researchers describe how flexibility often comes with work intensification (Kelliher & Anderson, 2010), and how responsiveness norms create an autonomy paradox where you feel free but also always reachable (Mazmanian, Orlikowski, & Yates, 2013).

Here is the mechanical problem. A habit is basically a cue and a response that gets learned until initiation is automatic (Wood & Neal, 2007). If your cue is fuzzy, like “after work,” it doesn’t behave like a cue. It behaves like a vague intention, and you have to renegotiate it every day.

Tools like if–then planning can help, but only when the “if” is concrete and consistently shows up (Gollwitzer, 1999). Otherwise every session stays manual. You pay the full start cost each time, like paying the setup fee again and again. It is not very fun, honestly.

The calendar mirage

Why the empty block is not real time

Even when you know all this, your brain still plans as if transitions are clean. You see a neat 45–60 minute block and it looks usable. Then the chain starts.

  • The previous meeting starts late. Microsoft telemetry has reported that roughly 30% of meetings start late, in aggregate across large calendars
  • It ends late anyway because the next one is back to back, so nobody wants to “waste” 5 minutes
  • You stay 6 minutes for the “quick” follow-up because leaving is socially weird
  • The real tax hits after, when you pay the context switch with 2 messages, 1 doc, and 1 “can you review” that lands right in the gap

The block still exists on screen. In real time, it already got eaten.

This is predictable math that gets misread as a personal failure. The planning fallacy is the brain’s habit of estimating based on a best-case story, not the average messy reality (Buehler, Griffin, & Ross, 1994). So the gym plan gets scheduled against “meetings end on time and I instantly switch modes,” and the first slip deletes the whole slot.

Then the miss feels moral. The plan was written like protected time will happen, so when it does not, you label yourself inconsistent instead of noticing the setup problem.

A quick diagnostic helps. Where was the health block supposed to be protected, and what recurring force breaks it in practice. A meeting that bleeds. A “just 1 more thing” reflex. A kid pickup. Context and life demands are not noise, they shape what happens (Perski et al., 2017).

Standby mode makes commitment feel expensive

The open tabs problem

If your brain feels like a browser with 27 tabs and 3 of them playing audio, adding “workout” or “cook a real meal” can feel like opening 1 more heavy app.

This is also where being a bit data-obsessed helps. When I wear a Polar H10 chest strap or even just my Decathlon sport watch, I can see that a 6–12 minute strength block actually registers—heart rate goes up, the session exists, it’s in the log. That small proof matters on days where my brain insists “if it’s not 45 minutes, it’s nothing.”

Fragmented knowledge work keeps tasks half-finished, then you get pulled away, then you have to reload context again (González & Mark, 2004). Interruptions link to higher stress and workload (Mark et al., 2008). Delaying is often just avoiding another round of setup and cleanup.

Fast replies become a hidden constraint

When quick responses are rewarded, you start selecting activities that you can pause instantly without looking flaky. That is basically telepressure, the felt urge to answer fast (Barber & Santuzzi, 2015). And if work keeps entering the evening through the phone, recovery gets thinner because the brain never fully drops the thread (Derks et al., 2015).

In that setup, scrolling wins because it is interruptible. A class or a proper run loses because it is not.

The trigger never arrives

So it is not that you “failed the plan.” You often never reached the start condition.

Habits depend on context, and when context shifts, habit-like behaviors get disrupted (Wood, Tam, & Witt, 2005). No boundary event means no reliable cue. If the environment does not output the trigger, the habit cannot run.

Health loses because it is not pause safe

Work pauses cleanly your gym plan doesn’t

Let’s make this concrete and pick one main failed attempt: the gym-after-work plan.

The desk starts to feel like the only safe place to be. You can pause mid-email. You can stop halfway through a doc and still look available.

But a gym session does not pause cleanly. Changing clothes, leaving the building, and being unreachable for a bit—none of it is “pause safe.” When interruptions happen, the real cost is often the restart. Resumption lag is a known thing in interruption research: you lose time and accuracy while your brain reloads where you were (Trafton et al., 2003).

Even when time exists, tiny frictions pile up and kill follow-through. When inbox and chat feel like a queue, leaving your desk can feel like walking away from a line that keeps growing.

And the friction stack is usually bigger than the workout itself. It is not “45 minutes of lifting.” It is more like

  • Find clean clothes, change, maybe pack a towel
  • Travel time plus tiny delays you never schedule
  • Warm-up, then the session
  • Shower, change again, get back
  • Reopen laptop, reload context, answer the messages that piled up

There is also a social layer. Staying reachable is legible performance. Going to train can look like you disappeared, even if it was 45 minutes and you had it on your calendar—apparently “in a meeting” is respectable, “under a barbell” is suspicious.

This is why gym contracts are a weird mirror. People pick plans that assume future consistency, then reality and small hassles win (DellaVigna & Malmendier, 2006). It is not that people “don’t want it.” Setup and reentry costs do quiet damage.

Debug the missing commit point

Find the trigger your plan depended on

Pick 1 habit that “failed” this week and do a quick autopsy, like debugging a flaky service. No worksheets. Trace backwards.

What was the exact trigger you expected to start it.

  • After work
  • After lunch
  • When the last meeting ends

Then check if that trigger actually happened in real life, or only on the calendar. This matters because if–then planning only works when the “if” is a concrete cue you reliably hit (Gollwitzer, 1999).

A commit point is only usable if it is

  • Real. It actually happens, not “should happen”
  • Recurring. It shows up most days, not just on your best Tuesday
  • Defensible. It survives schedule slippage. If a big chunk of meetings start late, buffers get eaten often

If your trigger fails any of those tests, treat it as a configuration error, not a motivation problem. Make the healthy option the easy option by design, not by character (Marteau, Hollands, & Fletcher, 2012).

Habits that run without a clean stop

Design for pause safety

Stop building health plans that require a clean “work ends now” event. Build actions that can run while work is still messy. Not lower standards. Just fewer dependencies.

A simple pause-safety checklist forces reality into the spec

  • Can it be paused in 30 seconds without drama
  • Can it be resumed without a 10-minute setup quest
  • Does it avoid the shower and travel and full-gear tax

Short bouts and accumulated movement are not a consolation prize. They are often the right tool for time-constrained days (Murphy et al., 2009).

Also, breaking long sitting with brief walking has strong evidence in plain terms: it helps your body handle blood sugar better after meals—the kind of thing you might notice as fewer 3pm crashes. One lab study found that 2-minute walking breaks improved blood sugar after eating (Dunstan et al., 2012).

If the gym-after-work plan keeps breaking

If the gym attempt is your main “failed habit,” keep it as the goal—but give yourself a backup that doesn’t require the day to behave.

A few formats that tend to survive messy days

  • 6–12 minute strength micro-session with minimal gear
  • 5–15 minute walking break between calls
  • 2-minute walk breaks to cut long sitting blocks
  • Protein plus fiber desk meal with low prep (so dinner isn’t forced to be a whole project)

This is basically “make the default easier.” When the easier option is also the healthier one, you need less negotiation at 6:40pm when Slack is still flickering.

What to watch next week

Most weeks don’t output a clean boundary. That’s the whole issue. So the useful thing to notice isn’t “did I have willpower,” it’s “what real edges did the day actually produce.”

Two small signals tend to tell the truth fast:

  • the small events that really happen every day (something you can reliably anchor to)
  • the moments you expected, but that never become defensible once meetings and pings start sliding

When a health attempt fails, the interesting question is which boundary it required to start. If your week doesn’t produce that boundary, you can’t anchor a habit to a ghost event.

If your workday never really ends, it makes sense that “after work” habits keep failing. That trigger is missing. The fix is not more motivation, it is better configuration. Spot the commit point your plan depended on, then swap in options that still run when Slack is still warm and your brain is stuck in standby mode.

That is where pause-safe formats earn their keep. Short walking breaks between calls, 6 to 12 minutes of strength, low-friction meals, tiny movement snacks that do not require a full gear change or a clean calendar gap. Small, repeatable inputs beat heroic plans that only work on a perfect Tuesday.

And if the gym-after-work plan is the one that keeps snapping: it might not be you. It might be the missing edge your day used to give you for free.

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25 Years in IT: A Journey of Expertise

2025-

Nook
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Product Lead
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Making health coaching feel like talking to a friend who actually gets you.

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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.
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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.
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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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Please be aware that the articles published on this blog are created using artificial intelligence technologies, specifically OpenAI, Gemini and MistralAI, and are meant purely for experimental purposes.These articles do not represent my personal opinions, beliefs, or viewpoints, nor do they reflect the perspectives of any individuals involved in the creation or management of this blog.

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