Update Pixi environment definitions (#2430)

Author: VeckoTheGecko

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu, windows]
-        pixi-environment: [test-latest]
+        pixi-environment: [test]
         include:
           - os: ubuntu
             pixi-environment: "test-py311"

docs/development/index.md

@@ -92,6 +92,8 @@ pixi install
 
 Now you have a development installation of Parcels, as well as a bunch of developer tooling to run tests, check code quality, and build the documentation! Simple as that.
 
+We primarily use the `default` environment when developing locally (you can 'activate' this using `pixi shell`) - but sometimes you might want to enter and run other environments. For example, if you're trying to debug a failure from CI.
+
 ### Pixi workflows
 
 **Typical development workflow**
@@ -134,7 +136,7 @@ Parcels supports testing against different environments (e.g., different Python
 The name of the workflow on GitHub contains the command you have to run locally to recreate the workflow - making it super easy to reproduce CI failures locally.
 
 ```{tip}
-For those familiar with Conda, you are used to activating an environment. With Pixi, you can do the same by doing `pixi shell <env-name>`. For example, `pixi shell test-latest` will drop you into a shell where you can run commands such as `pytest` like normal. You can exit the shell with `exit` or `Ctrl+D`.
+For those familiar with Conda, you are used to activating an environment. With Pixi, you can do the same by doing `pixi shell -e <env-name>`. For example, `pixi shell -e test` will drop you into an environment used in CI for testing (where you can run commands such as `pytest` like normal). Doing `pixi shell` will drop you into our default development environment. You can exit the shell with `exit` or `Ctrl+D`.
 ```
 
 ### Changing code

pixi.toml

@@ -16,15 +16,6 @@ backend = { name = "pixi-build-python", version = "==0.4.0" }
 setuptools = "*"
 setuptools_scm = "*"
 
-[environments]
-test-latest = { features = ["test"], solve-group = "test" }
-test-minimum = { features = ["test", "minimum"], solve-group = "test" }
-test-py311 = { features = ["test", "py311"] }
-test-py313 = { features = ["test", "py313"] }
-test-notebooks = { features = ["test", "notebooks"], solve-group = "test" }
-docs = { features = ["docs", "notebooks"], solve-group = "docs" }
-typing = { features = ["typing"], solve-group = "typing" }
-pre-commit = { features = ["pre-commit"], no-default-feature = true }
 
 [package.run-dependencies] # keep section in sync with pyproject.toml dependencies
 python = ">=3.11"
@@ -110,3 +101,19 @@ types-tqdm = "*"
 
 [feature.typing.tasks]
 typing = "mypy src/parcels --install-types"
+
+
+[environments]
+default = { features = [
+  "test",
+  "notebooks",
+  "typing",
+  "pre-commit",
+], solve-group = "main" }
+test = { features = ["test"], solve-group = "main" }
+test-minimum = { features = ["test", "minimum"] }
+test-py311 = { features = ["test", "py311"] }
+test-py313 = { features = ["test", "py313"] }
+test-notebooks = { features = ["test", "notebooks"], solve-group = "main" }
+docs = { features = ["docs", "notebooks"], solve-group = "docs" }
+typing = { features = ["typing"], solve-group = "main" }