About me ☕
Who is Sébastien Dubois? Here's the answer.

Hey there! I'm Sébastien Dubois 👋
I'm a Knowledge Management Expert, Author, Coach, Instructor, YouTuber, Entrepreneur and Founder. I will free you from mental overwhelm with systems that actually work ⚡
I'm the founder of DeveloPassion, a company helping me fulfill my life's mission, and supporting my lifestyle. I work half-time on that business. Next to that, I also work half-time as an IT Solution Architect, System Engineer and Project Manager for a large financial organization in Belgium.
I love writing, and sharing ideas about various topics that I'm passionate about:
- AI
- Knowledge Work
- Knowledge Management
- Content Creation
- Creativity
- Personal Organization
- Personal Knowledge Management (PKM)
- Obsidian
- Journaling
- Note-taking
- Writing
- Learning
- Reading
- Systems Thinking
- Design Thinking
- Zen Productivity
- Personal Development
- Mental Health
Subscribe to my newsletter if you're interested by any of those topics.

There are additional topics that I have put aside for now, but am still passionate about:
- Software Architecture
- Software Development
- IT Infrastructure
- IT Security
I actually wrote multiple books about IT and Software Development.
Current Projects
In 2025, I decided to regroup all my isolated communities, audiences, customers and offerings under a single umbrella: the Knowii Community. Knowii is a community of practice where top-tier professionals get to meet and grow together. Going forward, Knowii will be at the very center of my business. Instead of offering separate/isolated products, I now offer a real transformation to paid members, who get access unlimited access to my entire ecosystem of knowledge (i.e., courses, products, tools, templates, content, ...).
I've also recently decided to start sharing my experience and knowledge about Artificial Intelligence. I've been following the field for many years, and even more since Large Language Models (LLMs) have made huge leaps forward. I use AI everyday, and am busy building different products to help people better use and leverage AI.
You can learn more about my ongoing projects on my Now page
My Story
Life & Family
I live in Binche, Belgium, a city with almost a thousand years of traditions.
I have 3 kids, but manage to live a quiet life, free from the frenzy many seem to face with far fewer responsibilities. I don't feel overwhelmed, and I'm (almost) always calm, "zen", even though my life is BUSY. I'm getting married in 2026, with the most wonderful woman on earth (If you know her, you know it's true) ❤️
Childhood
I was born in 1983, when the Internet and the world was waking up to the World Wide Web. I spent my childhood riding my bike, playing in parks, watching TV, playing videogames, etc.
Around 8, I became addicted to computers and the Web, and never stopped. I played competitive online games for many years: MMOs, FPS such as Counter-Strike, Quake 3, Overwatch, and many others.
As a teenager, I was super shy and introverted. I was not at ease with people, and preferred to write and build websites. I've been writing code for 30+ years, so I know a think or two about that. And I've been writing for almost as long. Writing and IT are my two main passions in life.
I consider myself as kind, generous and humble. I love learning and sharing what I learn. I've explored many areas in my life, some much more deeply than others, but always with the same intensity. Those include: writing, programming, electronics, photography, board games, music theory, guitar, piano, personal development, productivity, personal organization, ...
Given my high level of curiosity and drive to learn, I'm a generalist, not a specialist. Although, when I dive into a new topic I find interesting/valuable, I tend to rapidly develop a deep level of expertise.
Career
I've been working for ~20 years in the IT industry . Since day one (and actually long before that), I have always been passionate about Software Development, Software Architecture, IT security, Code Quality, the Open Web, Free and Open Source Software (FOSS), IT Infrastructure, ... Professionally, I wore different hats over time: Software Developer, Technical Lead, Software Architect, Solution Architect, Infrastructure Architect, Infrastructure Manager, System Engineer, Team Leader, IT Security Expert, DevSecOps Architect, ...
Recent years
Back in 2019, I wrote a book called Learn TypeScript by Building Web Applications about the TypeScript programming language and modern Web development frameworks (e.g., React, Angular, Vue, ...). At the time, I was working on a startup project that ended up failing miserably. At the time, I also published many articles about software development on my Website, and started publishing my newsletter. I then started working on a collection of 12 e-books called Dev Concepts which explains a gazillion concepts about IT and Software Development. I published the first two, then decided to put that project on hold because I lacked funding and had to try other things to keep my business alive. I still intend to finish writing those books later on.
In 2020, I decided to pivot my business. I stopped consulting, and focused entirely on Knowledge Management. I started by doing serious research about the ecosystem/market: identifying the experts/enthusiasts, the products & their features, the communities, the main blogs/websites/communities, methods/systems/best practices... That led to the creation of a first product, called the Personal Knowledge Management Library (PKM Library). At first, I wanted to build a Knowledge Management SaaS (hence the research), but since I lacked funding and didn't have enough runway, I instead focused on creating content. I wrote hundreds of articles and newsletters, created communities, a sub-reddit, a Medium publication, a social media account. I also started crossposting my content on different platforms such as LinkedIn, Substack, ... DeveloPassion thus became a media business, and I kept building new things.
In 2022, I created the Obsidian Starter Kit, a 1:1 copy of my own system in Obsidian. I knew it worked since I was using it everyday. It was stable, and scaled really well. I sold hundreds of copies and kept improving it since then. I still maintain it, and intend to continue making it evolve. Meanwhile, my Knowledge Management practice became more and more mature, to the point I now consider myself a domain expert. I later created the Obsidian Starter Course, focusing on Obsidian and knowledge management best practices I learned from experience.

As my sales and revenue increased, I was able to conduct different experiments. For instance building communities of practice (e.g., for Software Crafters, Focused Productivity, PKM Enthusiasts, etc), growing a paid newsletter, launching a knowledge management coaching service, starting a YouTube channel, growing on social media, ...
At the end of 2023, I created the Knowledge Worker Kit, with the goal of sharing my knowledge and expertise on different topics (e.g., personal development, systems thinking, habits, routines, career management, learning, sharing, PKM, journaling, project management, planning/prioritization, task management, productivity, focus/attention/time management, personal organization, work, ...). I consider it as one of my most important projects.
In 2024, I started sharing my notes publicly over at https://notes.dsebastien.net. As of 2025-06, I've published almost 10K notes covering various topics.
In 2024 I've also built a number of Obsidian plugins and templates to scratch my own itch and further improve my practice:
- Dataview Serializer plugin for Obsidian
- Typefully plugin for Obsidian
- Update time plugin for Obsidian
- Replicate plugin for Obsidian
- Open Source Obsidian Plugin Template: https://github.com/dsebastien/obsidian-plugin-template
In 2024, I started working on the Knowledge Management for Beginners course. I released it in early 2025. That course covers everything I know and believe about Knowledge Management. It also goes wide and deep, and covers both theory and practice, applying design & systems thinking approaches to help people build their own system (rather than just using/tweaking a tool without proper system design).

In 2025, I started organizing live streams for the Knowii Community: Knowii Community Events. Those are accessible to paid community members, but can also be purchased individually on my store.
In 2025, I launched a first product about AI, the AI Ghostwriter Guide. It's a guide I wrote based on the approach I used and refined to create my own AI Ghostwriter, helping me write articles, newsletters, sales copy, etc.
My Top Skills
My top skills include:
- Expressing, sharing and teaching ideas clearly
- Learning FAST
- Identifying first principles
- Finding and learning from domain experts
- Connecting the dots across different domains
- Capturing, Organizing and Managing Information and Knowledge at scale
- IT and software development (including all the sub-fields)
- Entrepreneurship
My Strengths
I'm generally humble but have quite a few qualities:
- I have a stable mind and (almost) infinite patience. It takes a lot to make me lose my temper
- I have a lot of empathy. I care about others, how they feel and how they think
- I'm generous. I want to do good in the world
- I'm optimistic
- I'm a great listener (don't ask my wife, that doesn't count 😂)
- I have clarity (purpose, intent & ideas)
- I'm VERY organized (again, don't ask my wife, false positive)
- I'm a bridge builder. I can help people from different domains understand each other
- I'm open minded
Useful Links
- Newsletter: https://dsebastien.net/newsletter
- Books, Courses, Products & Services: https://store.dsebastien.net
- Where I share my ideas: My communications plan
- Coaching for those who want to take the fast lane
- Learn more about my projects, courses, and books
- Discover the stuff I use
- More: LinkTree
Given how passionate I am about Personal Knowledge Management (PKM). I often publish articles on this topic, but I have also launched various initiatives, courses, and products, such as:
- The Obsidian Starter Kit, a solid starting point and scalable system for Obsidian
- The Obsidian Starter Course, a deep-dive into Obsidian and PKM
- The Knowledge Worker Kit, a guide and private community for Knowledge Workers and Lifelong learners
- The Knowledge Management for Beginners course, a course focused on Knowledge Management and Personal Knowledge Management
- The Personal Knowledge Management Library, a collection of resources about PKM
- The PKM Journal, an online publication dedicated to PKM
- A Subreddit
- PKM Daily, a Twitter account to share regular news about PKM
- ...
Where to find me
You can find me on: