# RubyPlius > RubyPlius (UAB RubyPlius) is an independent software engineering company registered in Lithuania and founded in 2023. It develops and upgrades Ruby on Rails applications, implements AI that works on clients' own data, and builds healthcare software in line with GDPR and HIPAA. Key facts: three services — Ruby on Rails development and upgrades (including upgrades without a feature freeze), AI implementation (AI assistants, retrieval-augmented generation, document processing) and healthcare software (patient and clinic platforms, HL7 FHIR integrations, medical AI). Engagement models: fixed-scope project, dedicated team that extends the client's team, or a 1–2 week technical audit. Team of 15+ engineers, 10+ projects delivered. Every engagement starts with a written scope and ships in short, demoable iterations; projects typically start within 2–4 weeks of signing the scope. The site is bilingual: Lithuanian at the root, English under /en/. Contact: hello@rubyplius.lt or the project enquiry form; replies within 1 business day. Company code 306303110, VAT code LT100018437914, registered office Kalvarijų g. 176-55, LT-08205 Vilnius, Lithuania. ## Main pages (English) - [Home](https://rubyplius.lt/en/): overview of services, process, data handling, tech stack and FAQ - [Services](https://rubyplius.lt/en/services.html): Ruby on Rails, AI implementation and healthcare software, plus engagement models - [Ruby on Rails development and upgrades](https://rubyplius.lt/en/ruby-on-rails.html): Rails and Ruby upgrades with audit, dual boot and incremental releases; new Rails development and performance work - [Healthcare software](https://rubyplius.lt/en/healthcare.html): patient and clinic platforms, HL7 FHIR integrations and medical AI designed in line with GDPR and HIPAA - [How we work](https://rubyplius.lt/en/how-we-work.html): discovery, written scope, first iteration, iterative delivery and handover - [About](https://rubyplius.lt/en/about.html): company background, focus areas, principles and legal details - [Contact](https://rubyplius.lt/en/contact.html): project enquiry form and email ## Pagrindiniai puslapiai (lietuviškai) - [Pradžia](https://rubyplius.lt/): paslaugų, darbo proceso ir duomenų tvarkymo apžvalga - [Paslaugos](https://rubyplius.lt/paslaugos.html): Ruby on Rails, DI diegimas ir sveikatos priežiūros programinė įranga - [Ruby on Rails](https://rubyplius.lt/ruby-on-rails.html): Rails kūrimas ir atnaujinimai nestabdant funkcijų kūrimo - [Sveikatos priežiūra](https://rubyplius.lt/sveikatos-prieziura.html): pacientų ir klinikų platformos, HL7 FHIR integracijos ir medicininis DI pagal BDAR ir HIPAA - [Kaip dirbame](https://rubyplius.lt/kaip-dirbame.html): kaip RubyPlius vykdo programinės įrangos projektus - [Apie mus](https://rubyplius.lt/apie-mus.html): apie įmonę, 15+ inžinierių, 10+ projektų - [Kontaktai](https://rubyplius.lt/kontaktai.html): užklausos forma ir el. paštas ## Blog - [Blog](https://rubyplius.lt/en/blog/): engineering notes on Ruby on Rails, AI implementation and healthcare software - [How to upgrade Rails 6.1 to Rails 8 without a feature freeze](https://rubyplius.lt/en/blog/upgrade-rails-6-1-to-8.html): upgrade one minor version at a time with dual boot and release each step to production - [Tinklaraštis](https://rubyplius.lt/tinklarastis/): inžinerinės pastabos lietuviškai - [Kaip atnaujinti Rails 6.1 iki Rails 8 nestabdant funkcijų kūrimo](https://rubyplius.lt/tinklarastis/rails-6-1-atnaujinimas-iki-8.html): the same article in Lithuanian ## Optional - [Privacy policy](https://rubyplius.lt/en/privacy.html): how UAB RubyPlius processes personal data submitted through rubyplius.lt - [Privatumo politika](https://rubyplius.lt/privatumo-politika.html): privacy policy in Lithuanian - [Sitemap](https://rubyplius.lt/sitemap.xml): XML sitemap of all pages