Remove sub-dependencies now that lockfile is in place; update README

README.md

@@ -74,9 +74,11 @@ If we have to update the tool, use the following steps
 rm -rf .venv
 make install-deps
 source .venv/bin/activate
-# Update the workstation-bootstrap/pyproject.toml file as required.
-# Then update the lockfile:
-poetry -C workstation-bootstrap/ lock
+# Perform the required dependency operations using Poetry.
+# Use "poetry update <foo>" to update an individual dependency per pyproject.toml
+# Use "poetry lock --no-update" to pick up pyproject.toml additions/removals
+# Use -C to run commands in the workstation-bootstrap directory, e.g.:
+poetry -C workstation-bootstrap/ lock --no-update
 # Now we are ready to build updated wheels:
 ./scripts/build-sync-wheels --project workstation-bootstrap --pkg-dir ./workstation-bootstrap
 # Once the new wheels are ready, we recreate our sha256sums:

workstation-bootstrap/pyproject.toml

@@ -14,13 +14,4 @@ pip = "21.3.1"
 setuptools-scm = "5.0.2"
 pytest-runner = "5.3.0"
 cython = "0.29.33"
-flit-core = "2.3.0"
-# Sub-dependencies which we're explicitly freezing for now,
-# to ensure consistent build behavior with pip-compile based
-# boostrap.
-packaging = "20.9"
-pyparsing = "2.4.7"
-pep517 = "0.9.1"
-pytoml = "0.1.21"
-toml = "0.10.2"
-setuptools = "54.0.0"
+flit-core = "2.3.0"