Skip to works

Software and AI agents · Częstochowa, Poland · since 2025

We build thesoftwaregrowingcompaniesrun on.

Uniwersytet Wzrostu is a small, AI-native company. We design, ship and operate learning platforms, checkouts, mailing engines and AI agents for education and e-commerce brands in Poland. Claude Code is how we engineer, and how we run the company.

Open the works registerCompany details

University of Growth, in practice.

Uniwersytet Wzrostu means University of Growth. The company was registered in May 2025 to teach people how to build digital products. Building those products for clients turned out to be the faster lesson, so today the company works in two directions.

Build

Software and AI agents for companies that sell knowledge or physical products online. We own the whole stack: payments, platforms, data, automation and hosting, then keep it running.

Works 01 to 11

Teach

Our own learning platform and a program that teaches Polish specialists to work with Claude, built from use cases in our own projects rather than from theory.

Works 01 and 12

Works register

Twelve systems. Each entry has a client, a status and, where possible, an address you can open yourself.

  1. 01Learning and community platformOwn product · M2.0 by Sebastian ZacharaIn rolloutOct 2026
  2. 02Checkout and paymentsSebastian ZacharaLiveSep 2026
  3. 03Sales and funnel panelSebastian ZacharaLiveOct 2026
  4. 04Mailing engine on Amazon SESSebastian ZacharaIn rolloutOct 2026
  5. 05Automated webinar pipelineSebastian ZacharaLiveMay 2026
  6. 06Bołotow, AI agent for a sales teamLa Verny · CarskaLiveAug 2026
  7. 07Health recommendation writerSebastian ZacharaLiveAug 2026
  8. 08Shopify migration and product pagesLa Verny · CarskaIn rollout2026
  9. 09Server-side trackingLa Verny · JODUMLiveAug 2026
  10. 10Efekt Grawitacji growth engineOwn product · Ecomm GrowthLiveAug 2026
  11. 11AI Brain, our operating systemInternalLiveSep 2026
  12. 12AI High-Performance programOwn productIn preparation2026

01Learning and community platform

We replaced Circle with a platform of our own.

Sebastian Zachara runs Mężczyzna 2.0 (M2.0), a paid mentoring program. It lived on Circle, a US community SaaS. We built a multi-creator platform that does the same job under each creator's own brand: spaces, posts, courses with timed lesson release, events, paywalls, direct messages, analytics and member import.

In rollout

Live since 7 October 2026. Videos are moving over from Circle; members switch after the client signs off.

M2.0 member dashboard: next lesson, weekly progress and the members' forum, dark theme
M2.0 dashboard on a phone
M2.0 lesson view with course outline, video player and lesson materials
Bractwo, the M2.0 members' forum, with posts, tags and notifications

Screens from the release check on 7 October 2026. Member names are test accounts.

M2.0 loaded
8 sections, 30 lessons released on days 0, 7, 14, 21 and 28, 4 protected PDF workbooks, 183 days of access per member.
Quality
351 unit tests and 33 end-to-end browser tests pass before every release.
Operations
Runs on our own server: Postgres 16, nightly backups with a tested restore, an uptime check every 5 minutes.
Branding
Each community gets its own subdomain, logo, colours and sender name.

Next.js 16ReactPostgresDrizzleTiptapPlaywrightVitestDockerTraefik

Branded M2.0 sign-in page with Sebastian Zachara

The branded M2.0 entrance, live at m20.platforma.jakublapeta.pl.

02Checkout and payments

A checkout that belongs to the client, not to a platform.

Checkout for Mężczyzna 2.0 with card, Klarna, BLIK, bank transfer, instalments, PayPo and Twisto
The same checkout on a phone

The same checkout on a phone, with the offer, video and payment on one screen.

Sebastian's programs used to be sold through a hosted checkout. We replaced it with one of our own, on his domain. It takes card, BLIK, Klarna, bank transfer, 0% instalments, PayPo and Twisto, issues the invoice and opens course access the moment a payment clears.

Live

Live since 8 September 2026 at koszyk.sebastianzachara.com.

Payments
Stripe and Tpay, including a card subscription for 3 × 499 zł instalments.
After payment
Invoice issued in wFirma, access granted on the platform by webhook, conversion sent server-side to GA4 and Hyros.
History
369 orders migrated from the previous system, so reporting continues without a gap.
Quality
151 automated tests.

Next.jsStripeTpayNeon PostgreswFirma APIGA4 Measurement ProtocolVercel

03Funnel stack · works 03, 04, 05

The whole sales funnel, from the first email to the cohort report.

Around the checkout we built the rest of the machine for Sebastian's 14-day Restart Energii challenge (172 participants since 2025) and the M2.0 launches.

Restart Energii sales page: 14-day challenge, video and offer
Checkout for the 14-day Restart Energii challenge
  1. 03

    Sales and funnel panel

    One place for decisions: live sales feed, funnels, cohorts, goals and a cookieless traffic counter. Its history covers 250,515 zł of gross sales across three Stripe accounts and Tpay. Six coding agents built it in parallel. Live since 4 October 2026.

    Livepanel.sebastianzachara.com
  2. 04

    Mailing engine on Amazon SES

    Listmonk on Amazon SES with 18,631 contacts and 92 templates, scoring 9.5 out of 10 on mail-tester. It runs in shadow mode next to Brevo: in a 90-day backtest it made the same send decision 97.6% of the time.

    In rolloutlista.sebastianzachara.com
  3. 05

    Automated webinar pipeline

    An automated webinar reports every viewer to a small service on our server. It sorts registrants by how much they watched and starts the matching email sequence. Running since May 2026.

    Live

06AI agents · works 06, 07

AI agents with a job description and a permission slip.

An agent only helps a team when it is safe to give it real access. We build agents the way you hire people: a defined role, scoped access, a record of every action and tests before they start work.

Bołotow, for the Carska sales team

Live

Carska is a Polish supplement brand owned by La Verny. Its team asks Bołotow questions on Telegram. It answers from the brand knowledge base and live stock, and it can make controlled changes in the store, email marketing and ads. At 08:00 every day it sends the team a brief.

  1. 01 · AskTeam on TelegramSales and support staff of Carska ask in plain Polish.
  2. 02 · ThinkBołotowAnswers from the brand knowledge base and live stock levels.
  3. 03 · CheckPermission gateEvery tool call is checked against that person's access level.
  4. 04 · ActBrokerThe only path to change anything, with a log of every operation.
  5. 05 · SystemsShopify · Klaviyo · GoogleStore, email marketing, ads and analytics.

Two access levels · per-person permission gate · 622 tests on the server · daily brief at 08:00

Health recommendation writer

Live

Writes personalised health recommendation documents for Sebastian Zachara's clients from their intake survey and lab results. It works in two passes, an analytical note first and the document second, and nothing reaches a client until a person approves the draft.

Our 11-case benchmark for this task

Claude Sonnet 5
11 / 11
Next best model tested
7 / 11

How we pick models. Our agents run on a model-agnostic runtime on our own server, and we benchmark models per task. Today most production agents run on flat-priced subscriptions to keep costs predictable. Moving them to the Claude API, starting where Claude already wins our tests, is what we do next.

08E-commerce · works 08, 09, 10

Migrations, tracking and a growth engine for online stores.

  1. 08

    Carska: Shoper to Shopify

    We migrated 3,186 customer accounts, built a 46-page system of product pages and connected stock sync with Apilo, the brand's warehouse system. Ready to switch; the date belongs to the client.

    In rollout
  2. 09

    JODUM: server-side tracking

    Meta Conversions API and GA4 Measurement Protocol sent from the server for the JODUM Shopify store, verified end to end in August 2026.

    Livejodum.pl
  3. 10

    Efekt Grawitacji

    Our own offer for Polish online stores: a three-month implementation across traffic, cart, recovery and repeat purchase, with a revenue guarantee. To find the right stores we scanned 13,940 Polish online shops and had research agents profile 382 D2C brands.

    Liveecommgrowth.jakublapeta.pl
Ad ROI calculator for online stores with live results
Revenue growth calculator for returning customers

Two live calculators from the Efekt Grawitacji funnel.

11How we build

A small team ships this much because Claude Code runs the operation.

We do not use AI as a chat window. The company is a repository. Each business area is a sector with its own CLAUDE.md, git repository and knowledge vault. Claude Code works inside them as the operator: it writes and deploys code, reconciles the books, drafts copy, and writes down what it learned for the next session.

A five-step routing rule keeps each client's knowledge separate, so work for one brand never borrows facts from another. Every night the day's work is committed through a gate that blocks secrets and personal data.

6
sectors, one per business area
1,400+
knowledge notes
170+
playbooks
66
Claude Code skills
280
long-term memory entries
23:30
nightly commit with a privacy gate
SectorLa VernyCarska, JODUM, agent Bołotow
SectorSebastian ZacharaPrograms, funnel, checkout
SectorEcomm GrowthGrowth engine for online stores
OperatorClaude CodeWrites, deploys, reconciles, drafts, remembers.
HubMethod libraries, shared memory, tooling, one log for everything.
AgentsOur serverKnowledge synced from the hub every day at 18:00.
SectorUniwersytet WzrostuCompany, books, registry
SectorCommunityPlatform, programs, content
SectorPersonalThe founder's own operations

12Teach · AI High-Performance

Teaching Polish specialists to work with Claude.

AI High-Performance is the program we are preparing for our own platform. Module 1 lays the foundation in 24 lessons: Claude, Cowork and a second brain in Obsidian, built on the same patterns that run this company.

Modules 2 to 11 follow a specialist's working week. Each one is built from real use cases collected in our own projects, 386 of them, with a library of 37 ready-made skills. The first cohort is planned as a five-week challenge.

In preparation

Program designed, platform live, start date to be confirmed.

Course outline of Fundament: Claude od zera inside the AI High-Performance community (demo content)
AI High-Performance member dashboard (demo content)

The course Fundament: Claude od zera (Claude from scratch) on our platform, with demo content.

The next twelve months

  1. 01Move production agents to the Claude API, starting with the recommendation writer, where Claude already wins our benchmark.
  2. 02Open the platform to more Polish creators and move the M2.0 members off Circle.
  3. 03Launch AI High-Performance on our own platform.
  4. 04Turn our e-commerce work into a repeatable service for D2C stores.

Company

A Polish limited liability company. All works on this page were delivered by this company or its founder.

jakub@uniwersytetwzrostu.pl
Legal name
UNIWERSYTET WZROSTU sp. z o.o.
KRS
0001171812
NIP
5732962333
REGON
541671942
Registered
8 May 2025
Seat
Częstochowa, Poland
President
Jakub Łapeta
Verify
National Court Register search