I didn’t deliver exactly this, but I think I hit most of the points.

Your mom and I are permanently separating.

We are still a family, but your parents are no longer married.

Your mom is moving to Japan after Jerry's Birthday.

We are still a family.

Our love in our family hasn't changed.

It's just that your mom and I are free from the bond of marriage.

You can visit your mom any time you want.

She's giving up her green card, but she can visit too.

I know you don't think this, but to be clear, this isn't your fault or related
to you kids at all.

The proof that our marriage mattered in the world, and our love was real, is
you - our children.

Jerry, the boy who surprised us - and Momo, a "gift of love", from your
mother to me.

Your mom wants to find herself, and we can all support her in that.

The love you have shown me has always been steady,
and I feel it deeply.

Even without trying to remember,
the days we spent together as a family
are always in my heart,
and I thought that was simply everyday life.

Thinking of leaving this neighborhood, this home,
and all the familiar things inside,
brings tears to my eyes.
It moves me so much,
and I realize now for the first time
how much I truly loved it all.

Then I asked myself:
"It is alright for me to stay here.  Do I want to change?"
After reflecting for a while,
my heart quietly answered: I want to change.

I want to step into a new environment
and try something different.
There is no one but you
who would kindly accept such a wish of mine.

Nick, you are my dearest person,
the irreplaceable one who brought Jerry and Momoko into my life.
To keep that always close in my memory,
I have decided to go somewhere
just a little apart from here.

Your spouse,
Eriko

P.S.
I think I don't like the word "wife" ;p

We have a lot of love for each other.

I think we can and will remain a strong family.

A message or a video chat are always at our fingertips, and a beautiful memory
of building that family is in our hearts at all times.

I love you, Eriko Kirsch.

The thought of you burns me with the passion of desire, since the moment I
first saw you - and still burns just as brightly today.

I love how smart you are, and dedicated, and friendly, and how you are always
growing and improving, and learning new things, and braving new adventures. I
love the sound of your voice, in any form. I think you are gorgeous.

Moving out of our shared home must be very scary. I am scared to see you leave
as well.

I depend on you to make my life comfortable, so I can make your life
comfortable. It has worked well and I'm proud of what we've built together.

We make a great team, but not as romantic partners.

In that, I hope you find a romantic partner, if you so desire.

Knowing you are happy, and being able to glimpse your happiness, fills me with
joy.

Just the thought of you, fills me with joy.

Your loving husband,
Nick

The fitness service generates multi-week training plans using Claude AI.

Plans are stored in S3 with a full feedback loop - generate, review, iterate, then sync to Intervals.icu when satisfied.

The Problem

Training plans are rigid. They assume:

• You have perfect availability
• You never travel
• You don’t have other commitments
• You can do exactly what the plan says when it says to do it

Real life doesn’t work that way.

After eight months of building, the twenty-four system is running in production. Four services, fully automated, managing my entire fitness and wellness routine.

Here’s how it all works.

The Architecture

What It Does

The system automates everything around fitness tracking, calendar management, and meal planning:

Fitness tracking:

• Scrapes gym website, auto-reserves classes
• Processes Strava activities (adds emojis, detects commutes, assigns gear)
• Generates structured workout plans using AI
• Creates personalized stretching routines
• Builds multi-sport training plans for races

Calendar sync:

Two weeks after the service consolidation, here’s what’s been added.

Training Plan Generator

The big one: AI-powered training plan generation for endurance events.

What it does:

Give it a race (distance, date, sport) and it generates a complete training plan:

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POST /training-plan
{
  "race_date": "2026-03-07",
  "race_distance": 13.1,
  "race_name": "Half Marathon",
  "sport": "Run",
  "start_date": "2026-01-01"
}

The service:

1. Fetches your current fitness metrics from Intervals.icu (CTL, ATL, recent training)
2. Checks your calendar for holidays and time off
3. Sends everything to Claude with instructions
4. Gets back a week-by-week plan
5. Creates structured workouts in Intervals.icu

Holiday awareness: