diff --git a/.github/workflows/pr-python.yml b/.github/workflows/pr-python.yml
index 1b2b78755..2ac32c406 100644
--- a/.github/workflows/pr-python.yml
+++ b/.github/workflows/pr-python.yml
@@ -43,8 +43,7 @@ jobs:
 
       - name: install black
         run: |
-          pip install -r requirements.txt
-          pip install black
+          pip install -e .[dev]
       - name: black
         run: black --check .
 
@@ -60,7 +59,7 @@ jobs:
 
       - name: install mypy
         run: |
-          pip install -r requirements.txt
+          pip install -e .[dev]
           pip install mypy mypy-protobuf
           mypy --version
       - name: mypy
@@ -76,8 +75,6 @@ jobs:
         with:
           python-version: '3.13'
 
-      - name: install dependencies
-        run: pip install -r requirements.txt
       - name: package
         run: python -m pip install .
       - name: unittest
@@ -96,7 +93,7 @@ jobs:
           python-version: '3.13'
 
       - name: install dependencies
-        run: pip install -r requirements.txt
+        run: pip install -e .
       - name: unittest
         run: python -m unittest discover
 
@@ -111,6 +108,6 @@ jobs:
           python-version: '3.10'
 
       - name: install dependencies
-        run: pip install -r requirements.txt
+        run: pip install -e .
       - name: unittest
         run: python -m unittest discover
diff --git a/.github/workflows/pr-scala.yml b/.github/workflows/pr-scala.yml
index 196aec031..bc520390c 100644
--- a/.github/workflows/pr-scala.yml
+++ b/.github/workflows/pr-scala.yml
@@ -39,7 +39,7 @@ jobs:
       - name: Setup sbt launcher
         uses: sbt/setup-sbt@v1
       - name: install dependencies
-        run: pip install -r requirements.txt
+        run: pip install -e .
       - name: sbt test
         run: cd compiler && sbt -v +test
 
diff --git a/README.md b/README.md
index 1be9c2c9a..d4b765bd0 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,8 @@ See the [setup documentation](setup.md), then work through building a blinky boa
 
 **Setup tl;dr**: install the Python package from pip: `pip install edg`, and optionally run the [IDE plugin with block diagram visualizer](setup.md#ide-setup).
 
+Building from source: `pip install .` at the repository root.
+
 
 ## Additional Notes 
 
diff --git a/pyproject.toml b/pyproject.toml
index 67eaf4c5f..223b49d8e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,14 +19,17 @@ keywords = ["PCB", "hardware description language"]
 dependencies = [
     "protobuf >= 3.20.0",
     "sexpdata==0.0.3",
-    "Deprecated",
+    "Deprecated==1.2.14",
     "typing_extensions >= 4.4.0",
+    "pydantic == 2.8.2",
 ]
 requires-python = ">=3.9"
 
 [project.optional-dependencies]
 dev = [
     "black",
+    "types-Deprecated==1.2.9.20240311",
+    "types-protobuf"
 ]
 
 [tool.setuptools]
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 9f66faa16..000000000
--- a/requirements.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-protobuf >= 3.20.0
-typing_extensions
-sexpdata==0.0.3
-Deprecated==1.2.14
-types-Deprecated==1.2.9.20240311
-types-protobuf
-pydantic == 2.8.2