Fix readme to `uv sync`.. link to astral docs

README.rst

@@ -88,15 +88,23 @@ a sane install with `uv`
 ************************
 bc why install with `python` when you can faster with `rust` ::
 
-    uv lock
+    uv sync
 
-with all GUI support as well::
+    # ^ astral's docs,
+    # https://docs.astral.sh/uv/concepts/projects/sync/
 
-    uv lock --extra uis
+include all GUIs ::
 
-AND with all dev (hacking) tools::
+    uv sync --extra uis
 
-    uv lock --dev --extra uis
+AND with all our hacking tools::
+
+    uv sync --dev --extra uis
+
+
+Ensure you can run the root-daemon::
+
+    uv run pikerd [-l info --pdb]
 
 
 hacky install on nixos
@@ -111,7 +119,18 @@ start a chart
 *************
 run a realtime OHLCV chart stand-alone::
 
-    piker -l info chart btcusdt.spot.binance xmrusdt.spot.kraken
+    [uv run] piker -l info chart btcusdt.spot.binance xmrusdt.spot.kraken
+
+    # ^^^ iff you haven't activated the py-env,
+    # - https://docs.astral.sh/uv/concepts/projects/run/
+    #
+    # in order to create an explicit virt-env see,
+    # - https://docs.astral.sh/uv/concepts/projects/layout/#the-project-environment
+    # - https://docs.astral.sh/uv/pip/environments/
+    #
+    # use $UV_PROJECT_ENVIRONMENT to select any non-`.venv/`
+    # as the venv sudir in the repo's root.
+    # - https://docs.astral.sh/uv/reference/environment/#uv_project_environment
 
 this runs a chart UI (with 1m sampled OHLCV) and shows 2 spot markets from 2 diff cexes
 overlayed on the same graph. Use of `piker` without first starting