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    Open Source

    MIT-licensed Ruby libraries published on RubyGems.

    Both libraries are framework-agnostic — neither is a Rails engine. They work with Rails, Sinatra, or plain Ruby.

    payu-ruby

    v0.2.0
    MITRuby >= 3.1

    Ruby client for the PayU India payment gateway — hash generation, payment params, server-to-server verification, refunds. Framework-agnostic; works with Rails, Sinatra, or plain Ruby. Zero runtime dependencies.

    Released 19 July 2026MIT
    gem install payu-ruby
    SourceRubyGems

    trainers-rb

    v0.1.1
    MITRuby >= 3.1Early — 0.1.x

    Training loop, LoRA, LR scheduling, callbacks and safetensors serialization for fine-tuning HuggingFace transformer models. Built on torch-rb and transformers-rb. Early — 0.1.x.

    Released 9 June 2026MIT
    gem install trainers-rb
    SourceRubyGems

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