builder.group
→Small software studio for products, native apps, Shopify tools, and TypeScript packages.
builder.group lists the current products, public repos, npm packages, and download counts.
Active
ProductsTypeScriptOpen source
I build small software products and TypeScript tools at builder.group.
I build builder.group, a small software studio in Germany.
I work on focused apps, Shopify tools, and TypeScript packages. Most projects start as products I want to use. When a piece is useful on its own, I publish it as a package.
I care about clear APIs, small surfaces, and shipping things that do one job well.
Projects
Products, platforms, and prototypes.
Community Libraries
→Shared TypeScript packages from builder.group projects.
GitHub shows 36 stars. builder.group lists openapi-ts-router at 321.0k downloads, feature-fetch at 67.1k, tuple-result at 43.6k, and ecsify at 2.1k.
Active
TypeScriptnpmDeveloper tools
Saku
→Shopify link-in-bio app for pages on a merchant's own store domain.
Public Shopify App Store listing. GitHub repo builder-group/saku has 10 stars.
Active
ShopifyCreator toolsTypeScript
Abstand
→macOS app for focus sessions, app blocking, and forced breaks.
Listed on builder.group with website and public GitHub links.
In progress
macOSProductivity
FocusCat
→macOS pomodoro timer with app blocking and a companion UI.
Public website, App Store listing, and GitHub repo. GitHub shows 16 stars.
Maintenance
macOSProductivityTauri
Kairos
→iOS timer that picks a random end time inside a chosen range.
Listed on builder.group with App Store and GitHub links.
Maintenance
iOSSwiftProductivity
Derive
→iPhone app for color-hunt walks and 3x3 photo grids.
Listed on builder.group with App Store and GitHub links. Apple lists Derive on the App Store developer page for Benno Kohrs.
Maintenance
iOSSwiftLifestyle
Tapling
→iOS keyboard companion that taps along as you type.
Listed on builder.group and on the App Store developer page for Benno Kohrs.
Maintenance
iOSSwiftLifestyle
NoDox
→Chrome extension that blurs sensitive information on webpages.
Listed on builder.group with Chrome Web Store and GitHub links. Chrome Web Store lists NoDox by builder.group.
Maintenance
Chrome ExtensionPrivacySecurity
LearnLinesFaster
→Web app for learning scripts with the first-letter mnemonic method.
Listed on builder.group with website and GitHub links.
Maintenance
Web appLearning toolsCreator tools
Proof
Milestones, rankings, and results.
Apple App Store
Published apps on the App Store
Kairos, Derive, Tapling, FocusCat
Skills
The work Benno is useful for.
TypeScript libraries
Small product development
Shopify apps
Focus software
Tauri apps
Native Apple apps
Work with Benno
Selected advisory and build work.
Talk through product or TypeScript tool ideas
Collaboration
FlexibleRemote
Open to useful conversations and small collaborations. Best fit: indie software, Shopify tools, focus apps, and TypeScript libraries.
Custom
Experience
Roles Benno has held.
Founder · builder.group
Aug 2024 – Present
Building small software products, native apps, Shopify tools, and TypeScript packages.
IT specialist, backend development · DATEV eG
Sep 2019 – Oct 2025
Worked on backend development with Camunda Platform and Spring Boot after an apprenticeship focused on mobile development with React Native.