Skip to content

GitHub Sponsors Matching Fund

To boost community funding, GitHub will match your contribution! Learn more.

Become a sponsor to janko
@janko

Janko Marohnić

janko
Brno, Czech Republic

About me

Hi 👋 I'm a Ruby developer from Zagreb, Croatia, currently living in Brno, Czechia.

I've authored many Ruby gems in my career, these ones being the most significant:

I've taken over maintenance of some popular gems as well:

And for some gems I've had significant contributions:

  • Refile – file attachment toolkit that's a successor to CarrierWave (core team member)
  • http.rb – a fast Ruby HTTP client with a chainable API, streaming support, and timeouts (core team member)
  • Async – an asynchronous event-driven reactor for Ruby
  • Sequel – the database toolkit for Ruby
  • Roda – routing tree web toolkit

File Uploads

My primary focus in open source is around file uploads in Ruby. Having tried and been disappointed with other file attachment libraries in the past, I've decided to create Shrine.

Shrine brings many improvements over existing libraries:

  • follows good design principles (no god objects, minimal state, modular design, decoupled from Rails)
  • offers both processing up front (Paperclip, CarrierWave) and on-the-fly (Active Storage, Refile, Dragonfly)
  • advanced direct uploads with Uppy (enabling resumable uploads)
  • concurrency-safe backgrounding support
  • low memory usage with streaming

As part of developing Shrine, I've created helper gems for processing, downloading, and resumable uploads with tus and S3. I've also created various extensions and storage implementations, you can find them in the shrinerb GitHub organization.

I've also been contributing memory optimizations to many projects, including http.rb, async, mimemagic, aws-sdk-s3, symmetric-encryption, and mongo.

Sponsorship

I would like to continue maintaining Shrine and its ecosystem, as I believe it provides significant value for building file uploads. However, I don't have the luxury of being paid for my open source work, so any kind of support I can get will help ensure a healthy continuous maintenance 💚

If the existing tiers don't suit your needs, feel free to email me at janko.marohnic@gmail.com.

5 sponsors

@monorkin
@holamendi
@mislav
@shime

Pinned projects

Select a tier

$5 a month

Select

You will get a Sponsor badge on your profile and my gratitude 😃

$10 a month

Select

All of the above your name will be added the the Sponsors section on the Shrine website (for individuals)

$25 a month

Select

All of the above you'll get up to 1 hour of video chat support each month (for individuals)

$50 a month

Select

All of the above your company name will be added to the Sponsors section on the Shrine website (for companies)

$100 a month

Select

All of the above your company will get up to 2 hours of video chat support each month (for companies)

$250 a month

Select

All of the above your company will get my support time whenever a Shrine-related issue comes up (for companies)

You can’t perform that action at this time.