⚡ Move over to using rye instead of pipenv

Lots of moving files around, new Makefile, new pyproject.toml, etc. Also
some mild reformatting of the code due to switching from black to ruff.

.pre-commit-config.yaml

@@ -1,13 +1,10 @@
 repos:
-  - repo: https://github.com/pycqa/isort
-    rev: 5.12.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    # Ruff version.
+    rev: v0.6.4
     hooks:
-      - id: isort
-        name: isort (python)
-        language_version: '3.11'
-        args: ["--profile", "black", "--filter-files"]
-  - repo: https://github.com/psf/black
-    rev: 23.3.0
-    hooks:
-      - id: black
-        language_version: python3.11
+      # Run the linter.
+      - id: ruff
+        args: [ --fix, --select, I ]
+      # Run the formatter.
+      - id: ruff-format

.python-version

@@ -0,0 +1 @@
+3.12.4

Makefile

@@ -1,104 +1,71 @@
-###############################################################################
-# Common make values.
-lib    := quizzical
-run    := pipenv run
+app    := quizzical
+src    := src/
+run    := rye run
+test   := rye test
 python := $(run) python
-lint   := $(run) pylint
+lint   := rye lint -- --select I
+fmt    := rye fmt
 mypy   := $(run) mypy
-twine  := $(run) twine
-build  := $(python) -m build
-black  := $(run) black
 
 ##############################################################################
-# Run the app.
+# Local "interactive testing" of the code.
 .PHONY: run
-run:
-	$(python) -m $(lib)
-
-.PHONY: debug
-debug:
-	TEXTUAL=devtools make
-
-.PHONY: console
-console:
-	$(run) textual console
+run:				# Run the code in a testing context
+	$(python) -m $(app)
 
 ##############################################################################
 # Setup/update packages the system requires.
 .PHONY: setup
-setup:				# Install all dependencies
-	pipenv sync --dev
+setup:				# Set up the repository for development
+	rye sync
 	$(run) pre-commit install
 
 .PHONY: resetup
 resetup:			# Recreate the virtual environment from scratch
-	rm -rf $(shell pipenv --venv)
-	pipenv sync --dev
-
-.PHONY: depsoutdated
-depsoutdated:			# Show a list of outdated dependencies
-	pipenv update --outdated
-
-.PHONY: depsupdate
-depsupdate:			# Update all dependencies
-	pipenv update --dev
-
-.PHONY: depsshow
-depsshow:			# Show the dependency graph
-	pipenv graph
+	rm -rf .venv
+	make setup
 
 ##############################################################################
 # Checking/testing/linting/etc.
 .PHONY: lint
-lint:				# Run Pylint over the library
-	$(lint) $(lib)
+lint:				# Check the code for linting issues
+	$(lint) $(src)
+
+.PHONY: codestyle
+codestyle:			# Is the code formatted correctly?
+	$(fmt) --check $(src)
 
 .PHONY: typecheck
 typecheck:			# Perform static type checks with mypy
-	$(mypy) --scripts-are-modules $(lib)
+	$(mypy) --scripts-are-modules $(src)
 
 .PHONY: stricttypecheck
 stricttypecheck:	        # Perform a strict static type checks with mypy
-	$(mypy) --scripts-are-modules --strict $(lib)
-
-.PHONY: checkall
-checkall: lint stricttypecheck # Check all the things
+	$(mypy) --scripts-are-modules --strict $(src)
 
-##############################################################################
-# Package/publish.
-.PHONY: package
-package:			# Package the library
-	$(build) -w
-
-.PHONY: spackage
-spackage:			# Create a source package for the library
-	$(build) -s
-
-.PHONY: packagecheck
-packagecheck: package spackage		# Check the packaging.
-	$(twine) check dist/*
-
-.PHONY: testdist
-testdist: packagecheck		# Perform a test distribution
-	$(twine) upload --skip-existing --repository testpypi dist/*
+.PHONY: test
+test:				# Run the unit tests
+	$(test) -v
 
-.PHONY: dist
-dist: packagecheck		# Upload to pypi
-	$(twine) upload --skip-existing dist/*
+.PHONY: checkall
+checkall: codestyle lint stricttypecheck test # Check all the things
 
 ##############################################################################
 # Utility.
-.PHONY: ugly
-ugly:				# Reformat the code with black.
-	$(black) $(lib)
-
 .PHONY: repl
-repl:				# Start a Python REPL
+repl:				# Start a Python REPL in the venv.
 	$(python)
 
-.PHONY: clean
-clean:				# Clean the build directories
-	rm -rf build dist $(lib).egg-info
+.PHONY: delint
+delint:			# Fix linting issues.
+	$(lint) --fix $(src)
+
+.PHONY: pep8ify
+pep8ify:			# Reformat the code to be as PEP8 as possible.
+	$(fmt) $(src)
+
+.PHONY: tidy
+tidy: delint pep8ify		# Tidy up the code, fixing lint and format issues.
 
 .PHONY: help
 help:				# Display this help