5Ds AI Program Brief · Building in public · Nov 1, 2026
A personal operating system
A private database for one person's whole life: body, mind, people, money, work, places, time, direction, admin and legacy. It fills itself from the systems you already use, and it exists to answer one question: am I living the life I intend to?
Building in public. I'm turning this into open source code and a small SaaS. Want it for yourself? Book a discovery call, or read the story.
D1
Definition of the Problem
A life generates more data than ever, and almost none of it is in a form you can use to live better.
My life is spread across twenty systems, and none of them can tell me whether I'm living the life I intend to.
Scattered. Health lives in a watch, a hospital portal and old emails. Money lives in bank statements and an accounting file. Relationships live in a phone, WhatsApp, LinkedIn and memory. Travel lives in confirmation emails. Reflections live in Notion. Photos live in Google Photos, tens of thousands of them, mostly never seen again. Each system holds a slice, and none of them talk to each other.
Unanswerable. Simple questions about your own life take an hour or can't be answered at all. When was that surgery? How many times have I been to Australia? What's my net worth trend over five years? Who haven't I spoken to in a year who used to matter? What was I thinking the month the company sold?
Patterns stay invisible. The most useful insights sit between systems: sleep against mood, travel against happiness, drinking against fitness, money stress against relationships. No single app can see across them, so the patterns that drive a life stay hidden, even when you feel them.
Direction drifts. Goals get written in January and reviewed, if ever, by memory. Forum updates and monthly reviews are filled in by hand from scratch every time, so they're hard to sustain and impossible to compare over years.
Admin lapses. A passport expires, insurance renews at the wrong price, the will that came up twice in one meeting still isn't written. Nobody else could step in and find anything.
Memory fades, legacy is lost. The stories, people and moments that make up a life are recorded somewhere, but not kept anywhere. Family history disappears with the people who hold it.
What /life does about it
Remember
Every record of what happened, in one timeline: trips, surgeries, jobs, moves, milestones, people met. Searchable in seconds.
Reflect
Metrics over time across every area, side by side, so patterns between areas become visible. A monthly review that fills itself in.
Run
The admin of a life: expiry dates, renewals, accounts, documents, the people to call. Reminded before it's urgent.
The ten areas of a life
The structure every table, workflow and screen hangs on. Each area is scored monthly, so the whole life fits on one screen.
1 · Body
Health, fitness, sleep, nutrition, habits
2 · Mind
Mood, learning, skills, principles, lessons
3 · People
Family, friends, partner, mentors, community
4 · Money
Net worth, income, debt, cash flow, insurance
5 · Work
Companies, roles, wins, talks, books, reputation
6 · Places
Travel, homes, events, firsts, bucket list
7 · Time
Where the hours go, by area
8 · Direction
Vision, goals, commitments, reviews
9 · Admin
IDs, accounts, property, will, emergency info
10 · Legacy
Photos, stories, family history, lifeline
Design principles
Automatic first
Tracking dies when it's manual. Every area gets an automatic source where one exists. Manual input is only what a person alone can provide: scores, meaning, decisions.
Track what changes a decision or keeps a memory
Everything else is noise. Monthly snapshots beat every transaction. Curated photos beat the whole library.
Keep the original
Every structured row links back to the email, statement or page it came from. Claude extracts; nothing is lost in translation.
Ask before guessing
Low confidence and conflicts go to a review queue. A wrong medical date or balance is worse than a missing one.
Private by construction
One owner, one login, every row locked to that login. The most sensitive data a person has, treated that way.
Generic model, personal content
Areas, metrics and sources are data, not code. Adding "tennis matches" or a new bank is a row, not a release.
Not in scope
Storing bank or service passwords. Money comes in through statements and exports only.
Every transaction categorised like a budgeting app. Monthly balances and totals are enough to answer the questions that matter.
A full medical record or lab archive. Key events, conditions, medications and documents only.
Importing the entire photo library. Curated selections only.
Any public view. A future public "now" page would be a separate decision.
D2
Datasources Needed
Everything a life could draw from, not only what's connected today. Each source has a method, a cadence and a phase. Phase 1 is in bold.
Area
Source
What it gives
Method
Cadence
Phase
Body
Apple Health (aggregates the watch, scale, phone)
Steps, workouts, sleep, resting heart rate, HRV, weight, body fat
Health Auto Export app → webhook
Daily
1
Wearable (Whoop, Oura, Garmin)
Recovery, strain, sleep stages
Vendor API
Daily
2
Strava
Runs, rides, tennis and pickleball sessions
API
Daily
2
Gmail + uploads
Surgery reports, discharge notes, prescriptions, lab PDFs
Upload or email search → Claude
On demand
1
Manual check-in
Alcohol, sugar, habits not captured by devices
One-tap daily log
Daily
2
Mind
Notion journal and EO updates
Daily reflections, monthly scores, forum learnings
Notion API
Nightly
1
Kindle / Readwise / Goodreads
Books read, highlights
Readwise API or export
Weekly
3
Course platforms, Duolingo
Courses finished, language streaks
Export or manual
Monthly
3
People
Google Contacts / iCloud
Names, numbers, birthdays, companies
vCard export or People API
Weekly
2
Google Calendar
Who you met and when
Calendar API
Daily
2
LinkedIn
Connections, where people work
Data export
Quarterly
2
WhatsApp, Zalo
Last contact dates (not message content)
Chat export, metadata only
Monthly
3
Money
Bank and credit card statements
Month-end balances, income, big outflows
PDF/CSV upload or Gmail → Claude
Monthly
2
Brokerage, crypto, property
Asset values
Statement or manual snapshot
Monthly
2
Loans
Balances, rates, payoff dates
Statement or manual
Monthly
2
Business books (QuickBooks)
Owner draws, company revenue trend
QBO API
Monthly
3
Work
LinkedIn profile, CV
Roles, companies, dates
Export, one-time
Once
2
Speaking site, books, press
Talks given, audiences, publications
Site data + manual
Monthly
3
Places
Gmail (personal account)
Flights, hotels, trains, cars, events, back to 2006
Apps Script → webhook → Claude
Hourly
1
TripIt
Cross-check for recent trips
Private iCal feed
Daily
1
Google Maps Timeline
Where you actually were, places visited
On-device export
Quarterly
3
Time
Google Calendar, Lark calendar
Hours by category (work, people, health, admin)
Calendar APIs
Daily
3
Direction
Notion EO updates, vision pages
Goals, 30/60-day commitments, past results
Notion API
Nightly
1
/life itself
Monthly review, yearly goals
Native
Monthly
1
Admin
Google Drive scans
Passport, licence, insurance, deeds, will
Upload → Claude extracts expiry and numbers kept out of text
On change
2
Gmail
Renewals, subscriptions, warranties
Apps Script → Claude
Daily
2
Legacy
Google Photos
Favourites and named albums, with dates, places, faces
Photos Picker (you choose) or Takeout of albums
Monthly
3
Family story apps
Parents' life chapters, recordings
App export
Monthly
3
Notion lifeline, presentations
Your own story, in your words
Notion API
Nightly
1
Google Photos no longer lets apps read a whole library. Selection happens through Google's Photos Picker or a Takeout of chosen albums, which fits "curated, not everything" anyway.
Database tables
One Supabase project, dave-life. Every table has id, owner_id, created_at, updated_at and row-level security limited to the owner, so those are left off below. Every column carries a comment so Ask can read the schema.
Sources feed a single raw inbox. Claude turns raw items into records, measurements and reflections. Anything uncertain waits for review. Everything rolls up into the monthly review.
Sources
GmailTravel, medical, admin, statements
NotionJournal, EO updates
Apple HealthBody metrics
Calendar, ContactsPeople, time
UploadsStatements, scans, photos
Collect
ConnectorsApps Script, webhooks, scheduled pulls
source_itemsRaw inbox. One row per email, page, file or reading. Never duplicated.
Understand
Claude extractionClassify, extract fields, link people and places
Review queueLow confidence or conflict
Store
RecordsTimeline
MeasurementsCharts
EntriesReflections
Documents, mediaPrivate bucket
Use
Monthly reviewAuto-filled
Areas, timeline
NudgesPeople, renewals
Search, Ask
Sources → Collect → Understand → Store → Use
The core loop
1Capture
Sources fill records and metrics automatically, all month.
2Review
On the 1st, a draft review is waiting with every area's numbers and highlights.
3Reflect
You add scores, one word and meaning. Ten minutes, not an hour.
4Direct
Set 30 and 60-day goals tied to metrics. Next month's review checks them.
Workflows
Gmail sweepW1
Trigger
Hourly, Apps Script inside your Gmail
Steps
Search unlabelled travel, medical, admin and statement emails → POST to /api/life/ingest with a shared secret → label life/ingested
Output
source_items, then W3
Backfill
Monthly windows back to 2006, resumable cursor
Notion syncW2
Trigger
Nightly cron, plus a one-time full import
Steps
Fetch pages edited in 48 hours → strip repeated template blocks → upsert entries → EO scores into review_scores, weight into measurements
Output
Journal and history of monthly reviews
Extract and routeW3
Trigger
Every new source_item
Steps
Claude classifies (flight, hotel, statement, medical, renewal…) and extracts fields → match on natural keys (confirmation code, account and date) → apply changes and cancellations
Output
Rows in the right tables, or a review_queue item
Health syncW4
Trigger
Daily push from the Health Auto Export app
Steps
Webhook receives daily aggregates → upsert measurements per metric and day
Output
Body charts, review numbers
Trip builderW5
Trigger
After any trip leg changes
Steps
Order legs by time → a trip opens when you leave home and closes when you return → name it, attach places and journal entries from those dates
Output
trips, timeline records
Monthly review draftW6
Trigger
1st of each month, 06:00 local
Steps
Compute every metric's month vs last month and 12-month average → gather records, trips, people seen → Claude drafts highlights per area and checks last month's goals → notify
Human
Score, one word, meaning, next goals
Statement ingestW7
Trigger
Statement email (W1) or upload
Steps
Claude reads the PDF → month-end balance per account, income and large outflows → balances → net worth recalculated
Phase
2
NudgesW8
Trigger
Weekly, Monday morning
Steps
People past their contact interval, birthdays in 14 days, obligations inside their reminder window → one digest
Phase
2
Photo curationW9
Trigger
Monthly prompt, or after a trip ends
Steps
Open Google Photos Picker for the trip's dates → chosen photos copied to the private bucket → linked to trip, places, people
Phase
3
AskW10
Trigger
On demand
Steps
Claude queries through a read-only database role, cites every row it used
Guarantee
Can read everything, can change nothing
Wireframes
Layout and content, not final visual design. The build uses the site's navy, blue, magenta and mint on Inter, white background. Sample numbers are illustrative.
01
Home: this month across all ten areas
The whole life on one screen. Each area shows its key number and its trend against your 12-month average. What needs attention sits underneath.
davehajdu.com/life
/life
This month
Review
Timeline
Areas
Body
People
Money
Places
…
System
Inbox · 4
Sources
Ask
Search your life…
November 2026
Body78.4 kg
▲ 0.6 · 11 workouts
Mind22 entries
▲ 6 vs avg
People14 seen
3 overdue
Money$###k
▲ 4% net worth
Work$110k
record month
Places3 trips
9 nights away
Time62% work
▲ 8 pts
Direction1/3 goals
Admin2 due
passport 7 mo
Legacy48 photos
2 stories
Needs attention
Review for October is readyOpen
3 people past their intervalPeople
4 items waiting in the inboxInbox
Coming up
SydneyNov 19 to 23
Mom's birthdayin 12 days
Health insurance renewsDec 15
02
Monthly review: filled in before you open it
The heart of the product. Numbers and highlights are already there for every area. You add the score, the one word and what it meant. Same shape as an EO update, so it can be shared with a forum in one click.
davehajdu.com/life/review/2026-10
October 2026 review
DraftCopy as EO updateFinish
Scores · you set these
Body7
Mind9
People5
Money5
Work9
…5 more·
One word
Hungry
Headline
What defined this month…
Auto-filled from your data
Body · 11 workouts (goal 15), avg sleep 6.4h, weight 78.4 kg ▲0.6
People · 14 people seen, 2 family calls, 3 overdue
Mind · 22 journal entries. Recurring themes: discipline, travel, family
Last month's goals
Close 2 deals1 of 2
15 workouts11 of 15
Book a family tripDone
Next 30 and 60 days
+ Add a goal, tie it to a metric
03
Area page: Body
Every area has the same layout: its metrics as charts, its records as a timeline, its goals, and its sources. This makes adding a new area a configuration change.
davehajdu.com/life/area/body
Body
1Y5YAll
Weight (kg) · goal 79
Workouts per week · Sleep hours
Records
2019 Knee surgery · 2 documents
2015 Started strength training
2008 Broken wrist
Sources
Apple Healthtoday 06:10
Notion weightnightly
04
Timeline
Every record from every area in date order, filterable by area. Zoom from a decade to a single week, where journal entries, trips and photos from those days appear together.
davehajdu.com/life/timeline
AllBodyPeopleMoneyWorkPlacesLegacyDecadeYearMonth
Oct 30 to Nov 3, 2026 · Places Bangkok, Thailand · 2 flights · 1 hotel · 12 photos
Oct 2026 · Work Record revenue month · from October review
Sep 29 to Oct 3, 2026 · Places Melbourne, Australia · keynote, 88 NPS
2021 · Work Sold my first company
2006 · Places Moved abroad
05
Places: upcoming trip on a phone
The TripIt replacement, built from Gmail. Next trip, countdown, each day's flights and hotels in local time, confirmation codes that copy on tap.
Upcoming
Past
Map
Next trip
Sydney, Australia
Thu Nov 19 to Mon Nov 23 · 4 nights
in 18 days
Thu, Nov 19
✈
SGN 13:45 → SYD 22:15VN773 · Vietnam Airlines ABC123
H
Check in · Four Points Central Parkafter 15:00 8841207
Mon, Nov 23
✈
SYD 00:15 → SGN 09:15VN772 · Vietnam Airlines
Past tab
Trips by year with a map of every place visited, plus lifetime totals: countries, trips, flights, nights away. Each trip page shows the itinerary, the journal entries written during it, the people you were with and the photos you picked.
Changes and cancellations
A change email updates the booking. A cancellation removes it from the plan and keeps it in history. Two bookings that can't both be true go to the inbox.
06
People
The people who matter, ranked by closeness, with when you last connected and whether you're overdue. A person page shows every trip, meeting, journal mention and photo with them.
davehajdu.com/life/people
Search people…
Inner circleFamilyFriendsEOOverdue · 3
MomFamily · every 7 days
Last: 2 days agoOn track
Forum memberEO · every 30 days
Last: 41 days agoOverdue
Old friendFriend · every 90 days
Last: 7 months agoOverdue
MentorMentor · every 60 days
Last: 3 weeks agoOn track
07
Money
Net worth over time from month-end balances, with assets and liabilities split. Each number traces back to the statement it came from. No passwords stored, no bank login.
davehajdu.com/life/area/money
Net worth (USD)
Accounts · Oct 31
Bank, operating$##,###
Brokerage$##,###
Mortgage−$##,###
Missing statements
Credit card, OctUpload
08
Inbox: where Claude asks instead of guessing
Everything waiting on a decision, from every source. One click to approve, fix or reject.
davehajdu.com/life/inbox
Places · Two return flights for one trip
Bangkok: TG556 on Nov 1, or a rebooked VN608 on Nov 2?
View emailsQR971Via Bangkok
Money · New account found
A statement from an institution not yet in your accounts. Add as credit card?
IgnoreAdd account
Body · Value out of range
Physical score of 76 on May 25. A weight in kg typed into the wrong field?
KeepMove to weight
09
Sources: is everything still flowing?
Every connector, when it last ran, and what it brought in. A broken source shows here before it shows up as a hole in the data.
davehajdu.com/life/sources
SourceLast runThis month
Gmail sweep12 min ago38 itemsLogs
Notion sync02:00 today27 entriesLogs
Apple Health3 days ago28 daysFix
TripIt feed06:00 today5 tripsLogs
Bank statementsPhase 2·
10
Ask
Plain-English questions across every area, answered from your own records with the sources linked.
Do I sleep worse in months I travel more?
Yes, slightly. In months with 7+ nights away your average sleep was 6.1h, against 6.8h in months at home, across the 34 months with data. Sleep · 34 monthsTrips · 2023 to 2026
Who haven't I talked to this year that I used to see often?
Four people you saw monthly in 2024 and not at all in 2026. Want the list?
Ask anything…
D4
ROI Determined
Skipped for this brief. This is a personal system, not a business case.
D5
Deployment Plan
Built into the existing davehajdu.com Next.js app under /life, backed by a new Supabase project. Shipped in three phases, each usable on its own.
Where it runs
App: davehajdu.com/life, inside the current Next.js 16 site on Vercel
Database: new Supabase project dave-life, Singapore region, separate from the site's inquiry database
Files: private Supabase storage bucket, short-lived signed links only
Schedules: Vercel cron for nightly and monthly jobs, Apps Script triggers for Gmail
Ship flow: feature branch → PR → merge to main → Vercel deploys automatically
Security
One login: only Dave's email can sign in, by emailed link
Every page and API route checks the session on the server, not only at the edge
Row-level security on every table, limited to the owner
Ingest endpoints accept only signed requests with a shared secret
/life is hidden from search engines, the sitemap and robots.txt
No bank or service passwords stored anywhere
Phases
Phase 1 · The loop
Now
Frame, plumbing, Direction, Mind, Body, Places
Database, security, login
Sources, raw inbox, review inbox
Notion import and nightly sync
Apple Health daily sync
Gmail travel sweep and 20-year backfill, trip builder
Home, monthly review, area pages, timeline, travel, Ask
Phase 2 · People and money
Next
People, Money, Work, Admin
Contacts, calendar meetings, LinkedIn import
Contact intervals and weekly nudges
Bank, card, brokerage and loan statements, net worth
Career history
Documents, expiry dates, renewal reminders
Phase 3 · Memory
Later
Legacy, Time, the rest of Mind
Google Photos curation by trip and month
Forever app chapters, family history
Calendar time by area
Books, highlights, courses
Maps Timeline places
Definition of Done · Phase 1
Phase 1 is finished when all of these are true on production, checked by Dave.
Locked down. Logged out, every /life page redirects to login and every /life API route returns 401. A second Google account cannot sign in. The public key reads zero rows from every table. Supabase's security advisor reports no issues.
Notion is in. Every journal entry and forum update is imported, each journal entry holds only that day's writing, and rerunning the import creates zero duplicates. An edit in Notion appears in /life by the next morning.
Five years of reviews. Every forum update since 2021 appears as a monthly review with its scores and one word, and bad values were resolved through the inbox, not silently.
Body flows. Apple Health data has arrived every day for 14 consecutive days, and weight, workouts and sleep chart on the Body page.
Travel is complete. The Gmail backfill has run back to 2006. Every trip in the TripIt feed exists in /life with matching dates and flights. A new booking email appears as a trip within an hour, and a cancellation removes it.
The review writes itself. On December 1, the November review draft is waiting with numbers and highlights for every Phase 1 area, and finishing it takes under 15 minutes.
Questions get answered. Ask correctly answers, with sources: "When was my knee surgery?", "How many times have I been to Australia?", "What word described my month in October 2024?" It cannot change any data.
Sources are visible. Every Phase 1 source shows its last run on the Sources page, and a failed run shows as a warning within a day.
Works on a phone. Home, review, travel and Ask are usable at 375px wide.
Shipped properly. Type check and build pass, each slice merged through a reviewed PR, deployed through git push.
Open decisions
Question
Default if not decided
Which wearable, if any, beyond Apple Health?
Apple Health only in Phase 1
Monthly review: replace the Notion EO template, or feed it?
Feed it: /life drafts, "Copy as EO update" exports