IV Varyvoda

I build products—and I keep them alive.

I’m Igor Varyvoda, a product builder and operator behind Sirv Studio and a living portfolio of independent software.

Some for work, some because I can’t help myself.

Made in Ukraine. Based in Montenegro.

Latest — Why I don't kill side projects

Sirv AI Studio

Sirv Studio AI batch creation interface

I created and built Sirv Studio. It scans Shopify catalogs, runs AI work in batches, routes supplier uploads through review, and publishes with versioning and rollback.

Creator, product lead, architect and principal engineer

React 19 · TanStack Start · PostgreSQL · Drizzle · Inngest · Stripe · fal.ai

Explore Sirv Studio

Career

How I got here.

Full story
  1. 01 · First business First internet business

    Built and operated a profitable, high-traffic content website. Learned development, SEO, advertising, and platform risk at the same time.
  2. 02 · Portfolio operator Several internet businesses

    Ran developers, marketers, priorities, and delivery across several internet businesses.
  3. 03 · 2021 Earth Roulette

    Built a travel product and got properly back into hands-on engineering.
  4. 04 · Magic Toolbox → Sirv Growth and operations

    Joined as a marketer, then took on growth, product, and operations.
  5. 05 · 2025 → now Sirv Studio

    Used everything I had learned to build and ship Sirv Studio.

A living portfolio

Still running.

Full index

Some became businesses. Some stayed small and useful. I still look after them.

Sirvant / control roomEvolving
VibeQ overview showing active work, attention signals, and human-agent activity

012026● Evolving

vibeq

VibeQ started as a task board for Sirv Studio. Now it runs the queue behind Sirvant, the Slack bot my team uses to investigate and ship work.

Creator, product lead and principal builder Open project
  1. 01Ask in Slack
  2. 02Record the work
  3. 03Run within limits
  4. 04Return the evidence
Earth Roulette / discoverLong running
Earth Roulette destination discovery interface with travel filters and a random destination

022021● Long running

Earth Roulette

Press the button and Earth Roulette picks a destination. Filters and travel data help decide whether you should actually go.

Creator and sole builder Open project
  1. 01Set the boundaries
  2. 02Spin the globe
  3. 03Inspect the surprise
  4. 04Plan the trip
BudJet / overviewEvolving
BudJet personal finance overview with transactions, budgets, and receipt data

032025● Evolving

BudJet

I use BudJet every day. It scans receipts, keeps the line items, and shows where the money went without making me type every purchase.

Creator and sole builder Open project
  1. 01Scan or import
  2. 02Check the AI
  3. 03Share the budget
  4. 04See the pattern

Recently tended

What I fixed lately.

All projects
  1. Sirv Studio

    Added MiniMax H3 Max and made the workspace picker searchable.

  2. VibeQ

    Restored Basecamp access in Cloudflare agents and simplified the launch roadmap defaults.

  3. Earth Roulette

    Fixed mobile filter drawer mounting and pre-hydration trigger timing.

  4. BudJet

    Moved AI endpoints to Gemini 3.1 Flash Lite and replaced a removed model in Telegram receipt processing.

Writing

Start here.

All writing

Origin

  1. Why I don't kill side projectsWhy I keep small software running even when it will never become a company.

How I work now

  1. What I actually do all day
  2. Why every agent rule has an incident
  3. Two theories of a programmer

Product and strategy

  1. Anything an agent fleet can rebuild in a quarter is not a moat
  2. Sirv Studio
  3. VibeQ