It appears that a good chunk of the template is not null safe

[keeganskeate]

The codebase is raising errors due to not being null safe. Migrating the code base to null safety is (likely) necessary before compiling the template for the first time.

Helpful resources include:

• https://dart.dev/null-safety/understanding-null-safety
• https://stackoverflow.com/questions/60068435/what-is-null-safety-in-dart
• https://stackoverflow.com/questions/65456958/dart-null-safety-doesnt-work-with-class-fields