My Ai Nutrition App

Simon Damborg — Fri, 18 Sep 2026 00:00:00 GMT

Proton is the nutrition app our Raincity members use. It started life as a Softr build, and it now runs on Next.js with a Cloudflare Worker and Airtable behind it. I have never actually shown the thing, so here it is: all twenty-eight screens, in the order you meet them.

Everything in these screenshots is made-up data for an athlete who does not exist. Nobody's real food logs, weights or names appear anywhere below.

It starts with two numbers

Most nutrition apps open on a settings screen and ask you to configure yourself. Proton asks six questions instead, one at a time, and does the maths itself.

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First run asks one question at a time

Six steps, no settings screen. Where you are now, where you are going, and roughly what you eat today.

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Your plan, before you log anything

Day one starts at one gram of protein per pound of goal bodyweight, with the calorie, carb and fat numbers derived from your goal weight and activity level.

The line that matters is after day 1: halfway between goal and yesterday. The target is not a fixed number you either hit or fail. It moves toward your goal from wherever you actually landed the day before, which means a bad day makes tomorrow easier rather than putting you further behind.

The daily screen

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Everything for today on one scroll

A greeting that tells you what is still left, a bar for every macro you have unlocked, the last fourteen days, and today's meals. The bar card flips to stat tiles with a tap.

Note what is not there on day one. New members only see protein. Calories appear after five days hit, full macros after ten. It is the same app either way — it just refuses to hand you five numbers to track before you have proven you can hit one.

Logging a meal

This is the part people actually use, so it has three ways in and it always shows its working.

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Photograph it

The sheet opens on the camera. Review the numbers the AI comes back with, or save now and let it fill them in afterwards.

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Or just describe it

No photo needed. Type the meal in plain language and the same analysis runs on the text.

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Every item, itemised and editable

Calories are locked and recalculated from protein, carbs and fat, so the numbers can never drift apart into something that does not add up.

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Bulk log, for the plates that need three photos

Meal prep and big spreads rarely fit in one frame, so this takes several photos and notes together.

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Merged into one meal

The AI folds everything into a single entry with a per-item list, running totals and an editable name.

Deciding what to eat

The features I get asked about most all live in the gap between "I have thirty-seven grams of protein left" and "so what do I actually eat".

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Suggestions that know your day

Three specific meals based on what you have left, each with a reason attached.

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An assistant with your numbers

The chat already has today's totals, your targets and your history, so you get an answer about your day rather than general nutrition advice.

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Eating out, where most weeks fall apart

Type a restaurant name, paste a menu link, or photograph the menu.

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Tick what you ate

When it finds the menu, the items log themselves with estimated macros.

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Or it tells you what to order

When there is no menu to read it works backwards from what you still need, and says how to customise the order.

"Double the chicken, dressing on the side, swap half the rice for salad" is a more useful sentence than any number.

Going back and fixing things

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Tap any meal

Full macros, with edit and delete.

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Favourites the AI trusts

Star a meal and its exact macros join your library. Next time you mention it by name the AI uses those numbers instead of estimating.

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History, the honest view

Days hit, days logged and hit rate, then every day with its meals and its percentage of goal.

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Flagged for review

Anything the AI was unsure about gets a marker, and one tap filters history down to just those meals.

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It tells you what it guessed

Every item carries a confidence score and a note. Low-confidence items get a panel where you add what you know and re-run the analysis.

That last one is the feature I am most pleased with. "Olive oil, fifty-eight percent confident, portion estimated from visible amount only" is the app admitting something. An app that quietly invents a number is worse than useless for anyone trying to learn what they are actually eating.

Progress

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Thirty days at a glance

Days hit, consistency and average intake, with a star on every day above ninety percent.

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Bodyweight trend

Weigh-ins plotted against the goal line, and a nudge when it has been a week.

Thirty plants a week

Spector is named after Tim Spector, and it tracks the thirty-different-plants-a-week guideline for gut health. The trick is that there is nothing extra to log — the plants get pulled out of the meals you already recorded.

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This week's diversity score

Unique plants against a target of thirty, and how many food groups you covered.

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Where the plants came from

Every meal with the plants found in it, grouped by day.

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Twelve food groups

A running count over twenty-eight days, so the gaps are obvious. Mine is always nuts and seeds.

Accountability

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Friends

I connect members with training partners. Fourteen days of hits side by side, ranked, with streak badges.

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Open any card

The last seven days in full.

read the rest on the bifrost →

What is TheSport.Fit?

Simon Damborg — Mon, 01 Jun 2026 00:00:00 GMT

After running almost 30 seasons of the Functional Fitness League, I learned a lot. Not just about event coordination and management, but about movement standards, judging, and volunteer management too.

Right now, the sport runs almost entirely on volunteers. If we can earn government recognition, we open the door to real funding: the kind that can pay for professional technical officials instead of relying on volunteers forever.

To get that recognition, we need to meet Sport Canada's requirements, plus international sport accord standards. That's a mountain of paperwork and process most federations don't have the time or tools to manage well.

So I built TheSport.Fit. Software that takes everything I learned managing functional fitness and turns it into a platform for national and international governing bodies: membership, competition and qualification management, technical official certification, club directories, governance tools, all built around the standards these federations actually need to meet. The goal is simple: get internationally recognized movement standards and technical officials into the hands of every federation that wants them, faster and cheaper than building it themselves.

I've donated the full product to the Canadian Functional Fitness Federation (CF3) to serve as our beta tester, and it's already running their 2026 National Championship registrations. Next: rolling out subdomains and back end access to all 50 federations under the IF3 (International Functional Fitness Federation), so each one can meet sport accord requirements with efficient, transparent governance of their own.

Check it out: http://cf3.thesport.fit

Thor's a Big Nerd: What's in My Tech Pack

Simon Damborg — Wed, 31 Oct 2018 00:00:00 GMT

Since I'm not doing as much of that exercise thing because #mykneeistoothor, I figured I'd share from my other side, #thorsabignerd.

I don't carry all this in my @ryu_apparel quickpack all the time, but it's a few pieces I got deals on over the years that i use almost daily at home or work - or keep ready to grab if going somewhere I may need one of them.

Most of these things can be bought on Amazon pretty cheap (especially on sale) or when on sale at most tech stores.... @amazonkindle Paperwhite.

Short HDMI cable + female to female coupler (guarantees you'll be able to connect to any device)

Generic Usb C to HDMI hub w/ a 64gb micro USB thumb drive in it (you can get both for about $15 each on sales)

Logitech MX Master 2s (links my home computer + office computer + laptop like they're one machine)

@google Chromecast + usb micro + apple wall usb plug (they're the best made)

@garmin Fenix 3 smartwatch (always on screen + 7 day battery life, only medium smart - which I like) + spare charger.

20,000 mAh battery pack + 6' braided usb C cable (about 4 full phone charges or more from that)

My personal and work @moleskine both with some random multi pen that I'm obsessed with. -

If you actually made it this far let me know if you have any questions or if this was useless af (it kept me from doing work for an hour so I'm happy either way 😂). #thorsabignerd
#nobodyevenpaidmetodothis
#amidoingitwrong
#thorneedstogetalife
#lookmomimatechbloggernow

#mykneeisthor
#mythorknee
#thordoestheexerciseandspamstheinternets just kidding.

the bifrost · #nerd