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Einar Berg · Software Engineer

Useful side projects, data explorations, and software experiments.

I build useful side projects around things I get curious about - from puzzle games, book recommendations, mortgage calculators, language learning tools, wine discovery, and more. This site collects the projects, the thinking behind them, and the process of making them.

Selected work

Featured live projects

See all projects
Live, actively growing

Vínfinnur

A wine value discovery tool for Iceland

Uses wine price and wine ratings to calculate a value-score. Tries to collect data about all wines available in Iceland. Now also compares price on all alcohol in Iceland.

Market
Iceland
Usage
~85 daily sessions
WineIcelandDiscovery
Live, established

Lánareiknivél

A mortgage calculator for Iceland - supports advanced features.

Did you know that mortgages in Iceland can be CPI-linked, meaning the principal and monthly payments increase with inflation? Supports features such as extra payments, present value, inflation adjustments and more.

Market
Iceland
Usage
~140 daily sessions
MortgagesCalculatorFinance
Live, newly launched

BergPuzzles

A thoughtful collection of independent puzzle and mind games.

Brings logic, word, number, pattern, and strategy games into one calm place, with six games currently live in English and Icelandic.

Market
Global
Usage
Newly launched
PuzzlesGamesInternational
Live, stale

Top Reddit Books

Top book lists according to reddit users.

Top book lists created by parsing and aggregating data from r/books in 2019. Was popular, but is now stale, prime candidate for a refresh.

Market
Global
Usage
Not measured, probably low currently. Strong spike of 10K+ daily sessions at launch in 2019.
BooksRedditData Wrangling

These are selected projects. Browse the full collection for every live tool, game, and experiment.

Browse all projects

Explorations & notes

The thinking behind the projects.

Some ideas become finished tools. Others become data explorations, build notes, or small experiments. I use this site and my notes to share the process: what I tried, what worked, what changed, and what the project taught me.

Projects

Useful tools and products that people can actually use.

Explorations

Data, models, and analysis behind ideas and domains.

Notes

Build logs, decisions, experiments, and software thoughts.