Readme update:

- uv replace poetry
- update nix-shell command

README.rst

@@ -60,14 +60,10 @@ building the best looking, most reliable, keyboard friendly trading
 platform is the dream; join the cause.
 
 
-sane install with `poetry`
+sane install with `uv`
 **************************
-TODO!
 
-
-rigorous install on ``nixos`` using ``poetry2nix``
-**************************************************
-TODO!
+    uv lock
 
 
 hacky install on nixos
@@ -75,28 +71,7 @@ hacky install on nixos
 `NixOS` is our core devs' distro of choice for which we offer
 a stringently defined development shell envoirment that can be loaded with::
 
-    nix-shell develop.nix
-
-this will setup the required python environment to run piker, make sure to
-run::
-
-    pip install -r requirements.txt -e .
-
-once after loading the shell
-
-
-install wild-west style via `pip`
-*********************************
-``piker`` is currently under heavy pre-alpha development and as such
-should be cloned from this repo and hacked on directly.
-
-for a development install::
-
-    git clone git@github.com:pikers/piker.git
-    cd piker
-    virtualenv env
-    source ./env/bin/activate
-    pip install -r requirements.txt -e .
+    nix-shell default.nix
 
 
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