https://www.alanvardy.com/ Elixir Developer Web development https://www.alanvardy.com/images/alanvardy.jpg https://www.alanvardy.com/ en-us 2026 Alan Vardy. All rights reserved. https://www.alanvardy.com/post/compose-test-setup https://www.alanvardy.com/post/compose-test-setup How to make test setup more maintainable, readable, and reusable with composition. https://www.alanvardy.com/post/use-watchexec https://www.alanvardy.com/post/use-watchexec How to trigger tests and other checks when a change happens in your project https://www.alanvardy.com/post/partitioned-indexes https://www.alanvardy.com/post/partitioned-indexes When to use or not use the partitioning key in indexes on partitioned tables https://www.alanvardy.com/post/coding-contentedly https://www.alanvardy.com/post/coding-contentedly It is difficult to stay on an even emotional keel when working on code in a team. Check out some thoughts that helped me along the way. https://www.alanvardy.com/post/caching-dialyzer https://www.alanvardy.com/post/caching-dialyzer Speed up slow CI compile times by caching dialyzer persistent lookup tables https://www.alanvardy.com/post/pg-stat-statements https://www.alanvardy.com/post/pg-stat-statements Find slow queries using a built-in Postgres view. https://www.alanvardy.com/post/testing-async https://www.alanvardy.com/post/testing-async Improve the testing of async processes such as GenServers, Tasks, and GenStage pipelines. https://www.alanvardy.com/post/graphite-stacked-prs https://www.alanvardy.com/post/graphite-stacked-prs It's hard to keep your pull requests small when you don't know how long you will need to wait for a code review. Graphite allows you to stack up pull requests without pain. https://www.alanvardy.com/post/dependabot https://www.alanvardy.com/post/dependabot Make updates incremental and low-risk through automation https://www.alanvardy.com/post/speed-up-ci-migrations https://www.alanvardy.com/post/speed-up-ci-migrations How to speed up PostgreSQL migrations on Continuous Integration services (and locally) using database structure dumps https://www.alanvardy.com/post/using-eprof https://www.alanvardy.com/post/using-eprof How to find bottlenecks in your Elixir code using Erlang tools https://www.alanvardy.com/post/3-bad-args-against-tests https://www.alanvardy.com/post/3-bad-args-against-tests Rebuttals to common arguments about writing tests https://www.alanvardy.com/post/dialyzer-stop-worrying https://www.alanvardy.com/post/dialyzer-stop-worrying How to make Dialyzer work better for you https://www.alanvardy.com/post/unit-testing-graphql-queries https://www.alanvardy.com/post/unit-testing-graphql-queries A quick example for testing your GraphQL queries https://www.alanvardy.com/post/puma-server-not-loading https://www.alanvardy.com/post/puma-server-not-loading Updating a Rails site from 5.2 to 6.0? Having Puma issues? Check out this article for the solution. https://www.alanvardy.com/post/debug-rails-vs-code https://www.alanvardy.com/post/debug-rails-vs-code Quick tip on how to use Ruby debugging in VS Code https://www.alanvardy.com/post/phoenix-cypress-tests https://www.alanvardy.com/post/phoenix-cypress-tests Step by step instructions to set up acceptance testing that actually works https://www.alanvardy.com/post/ssh-your-own-machine https://www.alanvardy.com/post/ssh-your-own-machine How to create an SSH server and SSH into your own machine https://www.alanvardy.com/post/back-up-your-dokku-server https://www.alanvardy.com/post/back-up-your-dokku-server A quick little post on how to use rsync to download your server to a local machine https://www.alanvardy.com/post/asdf-installing-ancient-ruby https://www.alanvardy.com/post/asdf-installing-ancient-ruby Having trouble installing an older Ruby version? Here is a collection of so some of my solutions. https://www.alanvardy.com/post/asdf-on-arch https://www.alanvardy.com/post/asdf-on-arch Simple commands to install oh-my-zsh https://www.alanvardy.com/post/increase-git-files https://www.alanvardy.com/post/increase-git-files A quick command to allow git to track more files. https://www.alanvardy.com/post/install-oh-my-zsh https://www.alanvardy.com/post/install-oh-my-zsh Simple commands to install oh-my-zsh https://www.alanvardy.com/post/rbenv-and-ruby https://www.alanvardy.com/post/rbenv-and-ruby Install rebenv and Ruby on a Linux machine https://www.alanvardy.com/post/set-git-up-fast https://www.alanvardy.com/post/set-git-up-fast Quick copy paste commands to get started with git https://www.alanvardy.com/post/set-up-rubocop https://www.alanvardy.com/post/set-up-rubocop A quick configuration for Rubocop https://www.alanvardy.com/post/automate-rails-upgrades https://www.alanvardy.com/post/automate-rails-upgrades Set up Travis CI and Dependabot https://www.alanvardy.com/post/install-postgres-arch https://www.alanvardy.com/post/install-postgres-arch Install, enable, and create a user account https://www.alanvardy.com/post/redis-arch https://www.alanvardy.com/post/redis-arch Quick commands to get up and running with Redis https://www.alanvardy.com/post/associations-phoenix https://www.alanvardy.com/post/associations-phoenix A simplistic introduction to associations with Ecto in Phoenix https://www.alanvardy.com/post/scaffolding-phoenix https://www.alanvardy.com/post/scaffolding-phoenix Create a ton of files with a single command https://www.alanvardy.com/post/phoenix-dokku-digital-ocean https://www.alanvardy.com/post/phoenix-dokku-digital-ocean Step by step instructions for deploying a Phoenix app to production https://www.alanvardy.com/post/phoenix-snippets https://www.alanvardy.com/post/phoenix-snippets A dump of my current settings.json https://www.alanvardy.com/post/vs-code-settings https://www.alanvardy.com/post/vs-code-settings A dump of my current settings.json https://www.alanvardy.com/post/elixir-commands-rails https://www.alanvardy.com/post/elixir-commands-rails A quick list of useful commands for a developer coming from Rails https://www.alanvardy.com/post/datetime-picker-rails https://www.alanvardy.com/post/datetime-picker-rails Get up and running with a datetime picker https://www.alanvardy.com/post/lint-haml https://www.alanvardy.com/post/lint-haml Setup instructions for haml linting https://www.alanvardy.com/post/textile-to-markdown https://www.alanvardy.com/post/textile-to-markdown A little shell scripting to make the bad textile files go away https://www.alanvardy.com/post/admin-account https://www.alanvardy.com/post/admin-account Set up a simple administrative account for use in simple applications such as blogs. https://www.alanvardy.com/post/bootstrap-colour-scheme https://www.alanvardy.com/post/bootstrap-colour-scheme Set up a simple administrative account for use in simple applications such as blogs. https://www.alanvardy.com/post/post-pagination https://www.alanvardy.com/post/post-pagination Set up pagination in Rails https://www.alanvardy.com/post/rails-favicons https://www.alanvardy.com/post/rails-favicons Quickly add a favicon to your Rails website. https://www.alanvardy.com/post/rails-postgres-development https://www.alanvardy.com/post/rails-postgres-development Instructions on how to switch a development enviroment from sqlite3 to Postgres https://www.alanvardy.com/post/deploy-rails-dokku https://www.alanvardy.com/post/deploy-rails-dokku Deploy a Rails app to production with Dokku and Digital Ocean https://www.alanvardy.com/post/mailgun-contact-form https://www.alanvardy.com/post/mailgun-contact-form Create a Rails contact form with Mailgun https://www.alanvardy.com/post/guard-automated-testing https://www.alanvardy.com/post/guard-automated-testing Make your tests run automagically when you write Ruby code https://www.alanvardy.com/post/backup-heroku-databases https://www.alanvardy.com/post/backup-heroku-databases Make it easier to keep your data backed up. https://www.alanvardy.com/post/deploy-heroku https://www.alanvardy.com/post/deploy-heroku Make it easier to keep your data backed up. https://www.alanvardy.com/post/redcarpet-rouge https://www.alanvardy.com/post/redcarpet-rouge Make a nice blog with Markdown and syntax highlighting