Upgrading Ruby on Rails apps is crucial due to rapid framework releases & EOLs. Assess app's current version, desired version, infrastructure, database, & test coverage before upgrading in baby steps, ensuring compatibility & security.

MVP development with SINAPTIA: Discovery, feature definition, UX/UI design, project management, dev & launch. Separate essentials from nice-to-haves & out-of-scope features, assemble a team & set a work methodology.

Building an MVP (Minimum Viable Product) with just enough features to test market fit, gather feedback & iterate. Key aspects: hypothesis, essential features, time frame (<3 months), task prioritization & pivoting based on user needs.

Integrating React with Rails: A simple library to mount React components in Rails views, reducing code repetition & improving team workflow.

Break down form object complexity by separating responsibilities into smaller objects: service objects, validation objects, view models/presenters & delegates persistence to model classes.

Optimize your Docker images with these 5 tips: .dockerignore, smaller base images (like ruby:2.6-alpine3.9), Dive tool, minimize layers & package manager tweaks. Smaller images = faster deploys!

dockerizing ruby on rails app continues with everyday tasks in containers. run rake tasks & rails commands using `docker-compose` like `$ docker-compose run web rails routes`. tip: create custom scripts/aliases for repetitive tasks.

Dockerizing a Ruby on Rails app: create a Dockerfile, define database with docker-compose, set config/database.yml & .dockerignore files. Build & run containers with `docker-compose up --build`.

Dockerizing your dev setup can save you time & headaches. With Docker, your project's dependencies are isolated, making it easy for new devs to join & reducing conflicts with local env changes.