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

Abstract:

The article argues that many desk-bound people “fail” at health habits not because they lack discipline but because most health advice quietly assumes you control and can defend your schedule, while many jobs only “lend” you small, interruptible gaps that others can veto in real time; it reframes the problem as one of **time authority** (having protected, socially safe, predictable blocks) and suggests replacing self-blame with a simple **override log** that records what actually preempted the habit (a meeting overrun, pings, emergencies, or an intentional choice), turning missed actions into feasibility data instead of shame. Using examples like gym plans that are really “veto tests,” meal planning that collapses across many tiny unpredictable steps, and habit trackers that mistakenly grade availability as effort, the piece recommends designing **runnable, authority-light habits** that degrade gracefully under interruptions—pause-safe, camera-safe, low-setup actions that can be accumulated in small fragments—along with a quick checklist to pick them. It then offers two redesign moves that match real work patterns: swap fragile calendar blocks for **transition triggers** (e.g., “after a Zoom ends, do five shoulder rolls,” “while the kettle boils, do calf raises,” “when a build finishes, walk to the window and back”), and seek **micro-authority** (small, operational permission like clearer response-time norms, meeting buffers, camera-optional segments, or a simple “back at 14:10” status) rather than more motivation. The author threads in a personal, non-heroic perspective—French, born in 1974, trained in fundamental physics in Paris, long desk years in Beijing, Berlin, and Lisbon, noticing quiet upper-back tightness as the first “error message,” and a fitness-trainer/nutritionist wife whose posture reminders last about three minutes—to underline the core point: instrument the environment before judging the person, shrink habits until they can survive low authority, and add small permissions only where feasible.

A desk day can look reasonable on the calendar. Then the system boots and everything gets preempted.

Meetings run over. The “quick ping” becomes a mini-thread. Lunch slides, again. You finish the day tired and somehow still sitting in the same position, like the keyboard was glued to your hands. And when a health plan doesn’t happen, it is easy to label it as inconsistency, or lack of discipline, or whatever harsh story the brain enjoys at 11:30 pm.

This article is here to swap the story.

The main idea is simple. Most health advice has a hidden dependency it never mentions. It assumes you own your schedule. Many desk jobs do not work like that. They lend you small gaps between interrupts, and anyone can veto your nice little plan in real time. So the question shifts from “why can’t i stick to it” to “what overrode it.”

To make that practical, we will cover:

  • Time authority and why “30 minutes free” is not the same as “30 minutes you can protect”
  • Why common plans fail on feasibility, not effort, from gym blocks to meal planning to habit trackers that grade availability
  • A small override log that turns missed habits into useful signals instead of shame
  • Runnable habits that degrade gracefully when the day is noisy, plus a quick checklist for “authority-light” actions
  • 2 redesign moves that fit real work patterns, like using transition triggers instead of calendar blocks, and asking for micro-authority rather than more motivation

Your plan thought you owned the schedule

A desk day looks calm on paper and chaotic in real life

A meeting runs 7 minutes over, and the next one starts anyway. A “quick ping” turns into 12 minutes of back-and-forth, plus another 8 to remember what you were doing before. This is normal knowledge work. Interruptions add stress and effort, and switching leaves residue that slows the next task.

You end up busy, but not really in charge.

Time available is not time you can protect

There is a difference between having 30 minutes somewhere in the day and having 30 minutes you can actually use and defend.

Many roles are more like borrowing the schedule than owning it. Time authority is the boring, practical version. Being able to be unreachable for a short block. Having buffers that don’t get eaten instantly. Having a reasonably predictable end to the workday.

Once you see that, a lot of “simple” health advice reveals hidden prerequisites.

Most health plans have dependencies they never mention

Instead of asking “why am i inconsistent,” the more useful question is “what overrode me.”

Many plans don’t just require “10 minutes of movement.” They depend on:

  • Permission to step away without social penalty
  • Predictability so the slot doesn’t get deleted 3 times
  • Low interruptibility so the activity can finish without being cut in half

When workplace wellness efforts don’t land, “time” and “workload” show up again and again as barriers. Not shocking. Just an unspoken requirement that isn’t met.

Replace shame with a simple override log

A small audit helps. When the habit didn’t happen, what overrode it. A person, a meeting, an emergency, or an actual choice. (Sometimes it was just choosing Slack.)

That turns a “failed habit” into a feasibility signal. Closer to a log than a verdict. It also makes it easier to spot the same assumption hiding inside very different health plans.

The hidden requirement behind most health plans

Gym blocks are really a veto test

A gym plan is rarely just “45 minutes.” It assumes you can leave on time, ignore pings, and come back without paying a social or mental penalty.

In a desk job with response-time norms, disappearing is the hard part. If someone else can veto the calendar in real time, the plan breaks the moment life shows up.

Meal planning fails in smaller pieces

Meal plans look more flexible, but they rely on predictability across many small steps. Shopping assumes a stable evening. Cooking assumes a clean slot. Eating assumes lunch is a real thing, not something that keeps moving.

A common sequence is meeting wall until 1:30, then a camera-on call, then “later” again, then 4:00 arrives and lunch becomes 2 bites between tabs. Tracking tools then misread structural chaos as personal inconsistency.

Trackers grade availability, not effort

Streaks assume a stable daily rhythm and the ability to “make it up” later. When the schedule is variable, the tracker becomes a strict schoolteacher marking absence as laziness.

The score is basically an availability model. Habits do better when they repeat in a consistent context, because they are cue–response programs tied to reliable cues. The watch isn’t lying. It is just telling the wrong story. On my Decathlon watch, the streak logic treats a 10-hour meeting day like a moral failure, even when the only realistic win was 3 micro-walks between calls.

Even gear depends on workplace norms

Standing desks and walking pads look like passive fixes, but they still need permission from the environment.

Open-plan visibility changes what people feel comfortable doing in front of others. Remote work can be similar in a different way. Video calls increase self-monitoring and constrain mobility, so “just stand up” can feel oddly risky when the camera is on.

The pattern is simple and annoying. Available, but not acceptable. Possible, but not safe. Owned, but not used.

Time authority is not evenly distributed

What time authority really means at work

Once it is named, it gets easier to see 2 very different “desk jobs” hiding under the same title.

Time authority is plain stuff.

  • You can be unreachable for a bit
  • Your buffers survive contact with reality
  • You can run uninterrupted blocks without social or career penalty

It mostly comes from what the job lets you decide, not from your personality. It also depends on whether it feels safe to take that space without looking “difficult.” Not about being less ambitious. Not about caring less.

When the schedule makes uninterrupted time possible or impossible

In many roles, the job description explicitly includes being interruptible.

Maker-ish days get longer stretches where thinking can actually finish a sentence.

Dispatcher days are built from pings, approvals, escalations, and fast replies, with work happening in the gaps.

Same 10-hour day. Totally different outcome.

Why scheduling alone keeps failing

The calendar gap that was never really yours

Even when a gap exists, a lot of “healthy” actions can’t start unless they have a predictable ending.

The calendar shows 10 minutes between 2 calls. In reality, the 1st call runs over, there is a “quick follow-up” message, then someone grabs the 2 minutes left. The gap was visible, but not usable.

There’s also a social layer. Many habits are pause-unsafe in the same way some compute jobs are non-preemptible. If the system might kill the process at any moment, it is hard to justify starting it.

Now add evaluation risk. Being unreachable is not always neutral, especially where “availability” is read as commitment. Advice like “just block it” sometimes translates to “take a small career bet, daily.”

When plans repeatedly fail under this pressure, people start reading structural vetoes as personal unreliability. A better lens is to rate habits by how runnable they are under low time authority, before blaming motivation.

A better score than discipline is runnable

Habits that keep losing because they need protected time

The alternative is not “do nothing.” It is picking actions that degrade gracefully under interruptions.

Some habits keep losing because they need a protected block, privacy, and a predictable end time, plus logistics you can’t half-do. Think gym with commute, a long class, meal prep, or anything that implies showering, special clothes, or an explanation for disappearing.

On a good week they are great. On a real week they fail on feasibility, not effort.

Authority-light habits and how they survive messy days

Authority-light habits behave like resilient systems with graceful degradation. They still work when the environment is noisy.

In plain language they are interruptible, easy to split up, visually boring, and low setup and cleanup.

Short breaks can reduce fatigue. And official guidelines now accept that physical activity can be accumulated in short bouts, not only in big workouts.

A 10 second checklist for runnable habits

If this sounds “too small,” that is usually the point. Small things survive.

  • Pause-safe instantly
  • Camera-safe movement
  • No special location
  • No special clothing
  • No social story required

In open-plan offices and camera-on cultures, the best workday habits often look almost boring. That is the feature, not the bug.

Fragments still count

Why 2 minutes is not silly

Micro-movement is not there to replace real training. It is there to prevent “zero-input days” from becoming the default just because the calendar is hostile.

There is also a boring, official reason to take it seriously. Many modern recommendations accept accumulated minutes across the day, not only neat workout blocks.

Breaking up long sitting also seems to matter in controlled settings. Some lab studies suggest brief walking breaks can improve post-meal glucose and insulin responses. Not a dramatic promise, just a useful hint that tiny interruptions to sitting can create measurable change.

From a work point of view, micro-breaks fit because they can ride existing lulls instead of fighting for a protected block. Less “wellness theater,” more like small recovery moves you run to keep the system stable.

2 redesign moves for scheduled lives

Trade calendar blocks for transition triggers

Event cues beat time cues when the brain is already overloaded.

Scheduled habits assume you control a clean time block. Opportunistic habits assume the opposite. The day is noisy, so the habit lives in small openings with a pre-approved action attached.

In practice it looks like “meeting ends” or “waiting for a build” instead of “at 18:00.” This fits how habits actually run. Cue–response programs in context.

The simplest format is an if/then.

  • “At 15:00 I stretch” asks for time monitoring
  • “After the call ends, I stretch” is prompted by the environment

Examples that are hard to kill mid-flight.

  1. If a Zoom ends then stand up and do 5 slow shoulder rolls before touching the keyboard.
  2. If the kettle boils or coffee machine runs then do a 30-second calf raise set while waiting.
  3. If a build finishes or a deploy starts then walk to the window and back, no phone, 60 seconds.

Ask for micro-authority not motivation

Micro-authority is a tiny, explicit permission that creates a small control surface without needing a culture rewrite.

The key is to frame it as operational clarity, not a personal health request. But power is uneven, and pretending otherwise makes advice dishonest.

Lowest-drama options are often about making expectations legible.

  • Define response-time norms by channel, like “Slack is best-effort, phone is urgent.”
  • Add a default 5-minute buffer at the end of meetings when possible, so overruns stop eating the next block.
  • Use camera-optional segments for internal calls where faces are not doing real work.
  • Use boring status language like “back at 14:10” so unreachability has an end time and doesn’t look like vanishing.

Boundary advice has risk. Flexibility can trigger stigma. Speaking up can land badly depending on the culture. So it is often safer to start with authority-light habits, and only then add small permission tweaks where it’s feasible.

Put together, the redesign question becomes simple and a bit forensic.

When a habit failed, what prerequisite was missing. If it can’t run under low authority, shrink it until it can. If it almost runs, add one small permission so it stops getting vetoed.

Why the log mindset is personal to me

Physics brain meets desk reality

I’m french, born in 1974, and I studied fundamental physics in Paris, so my default reaction to a messy problem is to instrument it before judging it.

I’ve also spent most of my adult life at a desk, first in Beijing, then Berlin, and now Lisbon, often working past midnight. The 1st error message is never dramatic. It’s this quiet upper-back tightness that accumulates until I finally move.

My wife is a fitness trainer and nutritionist, and she reminds me to sit straight. I usually manage about 3 minutes.

I can also work a full day without eating, drinking, or moving, and I know now that is not a superpower. Seeing habits as cue–response programs makes “i failed” turn into “which cue won today.”

“30 minutes free” is not “30 minutes defendable,” and a missed habit is often just a veto you did not log.

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25 Years in IT: A Journey of Expertise

2025-

Nook
(Lisbon/Remote)

Product Lead
Building the future of health coaching. Leading product development and go-to-market strategy for a platform that makes personal wellness accessible through natural dialogue.
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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