Logbook
Maily · why I built my own mail gateway
I keep my email in good order: every message has its purpose, everything is filed. That was not the problem.
09:00The study · Logbook
What moves forward, day after day.
The logbook of my projects: what I build, the versions that ship, the choices I stand by. One entry for every step that matters.
The entries, newest first.
October 2026
Logbook
Yardsale · a few photos, one click, and it's for sale everywhere
I regularly resell second-hand items, and the most tedious part is not the selling: it is everything before it. Finding out what the item is worth, writing the listing, rewriting it for Vinted, LeBonCoin, Au Vide Grenier and Gens…
Logbook
thanaelfontaine.eu · a day to tie it all together
I build products and I connect ecosystems. The problem is that it scatters quickly: two organisations I founded (Horyond Agency and Horyond Non Profit), START Paris, a consulting practice, assessing climate startups at Team for…
Logbook
Horyond Agency · we build your tools, and we stay
Horyond Agency is the agency I founded and chair: websites, e-commerce, SaaS, mobile apps. Its promise fits in one sentence: we build your tools, and we stay.
Logbook
Horyond Non Profit · a digital boost for impact organisations
Horyond Non Profit is the non-profit association I founded and chair. It starts from a simple observation: associations, NGOs and early-stage startups need the same tools as everyone else, but rarely the budget that goes with…
Logbook
WildKit · the kit for heading into the wild
The name says it all: wild, nature, kit, what you take with you.
The activity, over a year.
2,509 contributions on GitHub in a year, public and private repositories together (only the count shows, never the content). Recorded on October 15, 2026. github.com/ThanaelFontaine