A better dep-groups specificity breakdown

Trying to start organizing non-hard deps into groups with sensible
"domain names" as it were. I coulda sworn we originally had at least UI
libs setup this way.. musta got lost in prior nix(os) porting.

Specifics,
- move all Qt and `rapidfuzz` deps into the `uis` group.
- add a new `repl` group for all the `pdbp` (debugging utils) and
  `xonsh` (@goodboy's shell pref) related console related extensions.
- add a `testing` group for the harness' needs.
- add a `de` for (as of rn) TWM specific libs.
- nest all the new ^ groups in the `dev` group as needed.

flake.nix

@@ -38,6 +38,10 @@
               bashInteractive
               bash-completion
 
+              # dev utils
+              ruff
+              pypkgs.ruff
+
               qt6.qtwayland
               qt6.qtbase
 
@@ -85,7 +89,7 @@
               # - always use the ./py313/ venv-subdir
               export UV_PROJECT_ENVIRONMENT="py313"
               # sync project-env with all extras
-              uv sync --dev --all-extras
+              uv sync --dev --all-extras --no-group lint
 
               # ------ TIPS ------
               # NOTE, to launch the py-venv installed `xonsh` (like @goodboy)

pyproject.toml

@@ -63,8 +63,6 @@ dependencies = [
     "trio-util >=0.7.0, <0.8.0",
     "trio-websocket >=0.10.3, <0.11.0",
     "typer >=0.9.0, <1.0.0",
-    "rapidfuzz >=3.5.2, <4.0.0",
-    "pdbp >=1.5.0, <2.0.0",
     "trio >=0.27",
     "pendulum",
     "httpx >=0.27.0, <0.28.0",
@@ -78,23 +76,28 @@ dependencies = [
     "numba>=0.61.0",
     "pyvnc",
 ]
+# ------ dependencies ------
 
-[project.optional-dependencies]
-uis = [
-    # https://docs.astral.sh/uv/concepts/projects/dependencies/#optional-dependencies
-    # TODO: make sure the levenshtein shit compiles on nix..
-    # rapidfuzz = {extras = ["speedup"], version = "^0.18.0"}
-    "rapidfuzz >=3.2.0, <4.0.0",
-
-    # for consideration,
-    # - 'visidata'
 
 # TODO: add an `--only daemon` group for running non-ui / pikerd
 # service tree in distributed mode B)
 # https://docs.astral.sh/uv/concepts/projects/dependencies/#optional-dependencies
-]
 
 [dependency-groups]
+uis = [
+    # https://docs.astral.sh/uv/concepts/projects/dependencies/#optional-dependencies
+    # TODO: make sure the levenshtein shit compiles on nix..
+    # rapidfuzz = {extras = ["speedup"], version = "^0.18.0"}
+    "rapidfuzz >=3.5.2, <4.0.0",
+
+    # for consideration,
+    # - 'visidata'
+
+    "qdarkstyle >=3.0.2, <4.0.0",
+    "pyqt6 >=6.7.0, <7.0.0",
+    "pyqtgraph",
+]
+
 # TODO: a toolset that makes debugging a `pikerd` service (tree) easy
 # to hack on directly using more or less the local env:
 # - xonsh + xxh
@@ -103,23 +106,46 @@ uis = [
 #
 # console ehancements and eventually remote debugging extras/helpers.
 # use `uv --dev` to enable
-dev = [
-    "pytest",
-    "elasticsearch >=8.9.0, <9.0.0",
-    "prompt-toolkit ==3.0.40",
-    "cython >=3.0.0, <4.0.0",
+repl = [
+  # debug
+  "pdbp >=1.5.0, <2.0.0",
     "greenback >=1.1.1, <2.0.0",
-    "ruff>=0.9.6",
-    "pyperclip>=1.9.0",
-    "i3ipc>=2.2.1",
-
-    # ?from git, see below.
   "xonsh",
-    "qdarkstyle >=3.0.2, <4.0.0",
-    "pyqt6 >=6.7.0, <7.0.0",
-    "pyqtgraph",
+    "prompt-toolkit ==3.0.40",
+    "pyperclip>=1.9.0",
 
 ]
+testing = [
+  "pytest",
+]
+de = [
+  # DE-specific
+  "i3ipc>=2.2.1",
+]
+dev = [
+  # https://docs.astral.sh/uv/concepts/projects/dependencies/#development-dependencies
+  "cython >=3.0.0, <4.0.0",
+
+  # nested deps-groups
+  # https://docs.astral.sh/uv/concepts/projects/dependencies/#nesting-groups
+  {include-group = 'uis'},
+  {include-group = 'repl'},
+  {include-group = 'testing'},
+  {include-group = 'de'},
+]
+lint = [
+  # XXX, with flake.nix needs to be from nixpkgs
+  "ruff>=0.9.6" 
+  #
+  # ^TODO? these markers don't work; use deps-flags for now?
+  # ; os_name != 'nixos' and platform_system != 'NixOS'",
+  # ; defined('IN_NIX_SHELL')",
+]
+dbs = [
+  "elasticsearch >=8.9.0, <9.0.0",
+]
+# ------ dependency-groups ------
+
 
 [tool.pytest.ini_options]
 # https://docs.pytest.org/en/stable/reference/reference.html#configuration-options
@@ -132,24 +158,29 @@ console_output_style = 'progress'
 # https://docs.pytest.org/en/stable/how-to/plugins.html#disabling-plugins-from-autoloading
 # https://docs.pytest.org/en/stable/how-to/plugins.html#deactivating-unregistering-a-plugin-by-name
 addopts = '-p no:xonsh'
+# ------ tool.pytest ------
 
 
 [project.scripts]
 piker = "piker.cli:cli"
 pikerd = "piker.cli:pikerd"
 ledger = "piker.accounting.cli:ledger"
+# ------ project.scripts ------
 
 [tool.hatch.build.targets.sdist]
 include = ["piker"]
-
 [tool.hatch.build.targets.wheel]
 include = ["piker"]
+# ------ tool.hatch ------
 
 
 # TODO? move to a `uv.toml`?
 [tool.uv]
 python-preference = 'system'
 python-downloads = 'manual'
+# https://docs.astral.sh/uv/concepts/projects/dependencies/#default-groups
+default-groups = ['uis', 'dev']
+# ------ tool.uv ------
 
 
 [tool.uv.sources]
@@ -166,3 +197,4 @@ tractor = { git = "https://pikers.dev/goodboy/tractor", branch = "piker_pin" }
 # the runtime being seriously tested here Bp
 # tractor = { path = "../tractor/", editable = true }
 # xonsh = { path = "../xonsh", editable = true }
+# ------ tool.uv.sources ------