Component: Internal Things to Improve

[StachuDotNet]

This Issue exists to collect many items that don't quite effect users, but we still want to address at some point.

Many tasks here (e.g. the TODOs and CLEANUPs) are probably contributable by anyone, but others may require some internal knowledge or access. Please ping in Discord or discuss in this Issue before picking up anything ambiguous.

• Everything marked TODO in the codebase
• Everything marked CLEANUP in the codebase
• Somehow report on types allow<>'d to be serialize that are unused
• Decide between init, lazy, and passing values for startup values and singletons (see Decide between init, lazy and passing values for startup values/singletons. #3944)
• Lock dotnet tool versions in Dockerfile (see Lock dotnet tool versions in Dockerfile #3896)
• Prevent Timeout exceptions from being rollbar'd (see Prevent Timeout exceptions from being rollbarred #4092)
• Warm up BwdServer when it starts (see Warm Up BwdServer when it starts #3782)
• Run F# backend against coverage tool (see Run F# backend against coverage tool #3688)
• Document/Fix F# Debugging (see Document/Fix F# Debugging #3634)
• Consider banning string function (see Consider banning string function #3567)
• Include reference to user in rollbars created by queueworker (see Add people to queueworker rollbar #3905)
• Revisit how to test/validate docstrings (see old Revisit how to test/validate docstrings #4762)
• Port our scripts to Darklang
• consider renaming "CustomType" to something else, if we haven't already
  • definedType?
• Improve safety of our duplicate dockerfile setup
  • we have a separate repo, dockerfile, that is maintained and built to produce a base image for CI to use while building
  • we aim to keep the Dockerfile in this repo (along with a few associated scripts) a direct match of the one in the dockerfile repo
  • TODO: somehow, try to ensure these files don't become "out of sync"
  • fail if behind, in CI, on main
  • utilities to copy ... built in dark
• make builds faster
  • ? interface (.fsi) files might improve compile-time performance.
    • they seemingly can be auto-generated: https://twitter.com/tomasgrosup/status/1584460711538802688
• potential upgrades to how we should store programs
  • Store handlers with transitive list of toplevels to also load
  • move cached storage to a fast cache (like redis)
  • switch to using SetExpr where possible
  • switch to "real" operational transforms
• Add dark to https://hstspreload.org (see Add dark to https://hstspreload.org/ #3829)
• Look at opts.Limits.MaxConcurrentconnections
  • (likely applies to bwdserver)
• Fix DMARC on outgoing emails from mailchimp #4725, might be done already
• Make it easier to avoid problems in the DB Make it easier to avoid problems in the DB #3949
• The pager hasn't been going off for PageableExceptions
• consider if gcp-containers-test job should depend on additional other jobs

Once we start on any of these,

• extract the bullet into its own issue, copying any relevant notes
• , and delete the bullet here