support standalone library

pyproject.toml

@@ -9,7 +9,6 @@ description = "topographical node-based image analysis."
 readme = "README.md"
 requires-python = ">=3.10"
 dependencies = [
-    "aiohttp>=3.9,<4",
     "gwyfile>=0.2",
     "h5py>=3.10,<4",
     "igor>=0.3",
@@ -22,6 +21,9 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
+server = [
+    "aiohttp>=3.9,<4",
+]
 dev = [
     "pytest>=8,<9",
     "pytest-cov>=7,<8",
@@ -38,6 +40,9 @@ icons = [
 [project.scripts]
 tono = "backend.main:main"
 
+[tool.setuptools]
+py-modules = ["tono"]
+
 [tool.setuptools.packages.find]
 include = ["backend*"]