Slide 2 - Kris Buytaert's talk
https://www.youtube.com/watch?v=LnyBo6m4ods
https://archive.fosdem.org/2020/schedule/event/continuous_delivery_starts_with_continuous_infrastructure

Slide 13 - links to static security tools
https://blog.christophetd.fr/shifting-cloud-security-left-scanning-infrastructure-as-code-for-security-issues

Slide 14 - more static analysis
https://github.com/terraform-linters/tflint

Slide 15 - VS Code plugin
https://github.com/hashicorp/vscode-terraform

Slide 16 - Atlantis
https://github.com/runatlantis/atlantis

Slide 20 - tfarbe
https://github.com/jeff-knurek/tfarbe

Slide 21 - terragrunt
https://github.com/gruntwork-io/terragrunt

Slide 22 - tests
https://github.com/gruntwork-io/terratest
https://github.com/newcontext-oss/kitchen-terraform
https://github.com/open-policy-agent/conftest
https://github.com/terraform-compliance/cli

Slide - 23 Mock infrastructure
https://github.com/localstack/localstack

Slide 24 - versions
https://github.com/tfutils/tfenv
- list
https://wiki.nikitavoloboev.xyz/devops/terraform

Slides 26+ - examples
https://learn.hashicorp.com/tutorials/terraform/github-actions
https://circleci.com/developer/orbs/orb/circleci/terraform
https://wbassler23.medium.com/securing-secrets-for-your-iac-using-jenkins-terraform-and-ansible-vault-7009e0a7eb32