docs: Update CONTRIBUTING.md to mention uv (#3965)

* Remove Poetry check, update uv command, and remove dev target from Makefile

* Update CONTRIBUTING.md to reflect new development setup and remove docker-compose instructions

CONTRIBUTING.md

@@ -6,7 +6,6 @@ to contributions, whether it be in the form of a new feature, improved infra, or
 
 To contribute to this project, please follow the [fork and pull request](https://docs.github.com/en/get-started/quickstart/contributing-to-projects) workflow.
 
-
 ## Reporting bugs or suggesting improvements
 
 Our [GitHub issues](https://github.com/langflow-ai/langflow/issues) page is kept up to date
@@ -32,10 +31,9 @@ so that more people can benefit from it.
   [collapses the content](https://developer.mozilla.org/en/docs/Web/HTML/Element/details)
   so it only becomes visible on click, making the issue easier to read and follow.
 
-
 ## Contributing code and documentation
 
-You can develop Langflow locally via Poetry + NodeJS or docker-compose.
+You can develop Langflow locally via uv + NodeJS.
 
 ### Clone the Langflow Repository
 
@@ -50,15 +48,16 @@ git remote add fork https://github.com/<your username>/langflow.git
 We also provide a .vscode/launch.json file for debugging the backend in VSCode, which is a lot faster than using docker compose.
 
 ### Prepare the environment
+
 Setting up hooks:
 
 ```bash
 make init
 ```
 
-This will install the pre-commit hooks, which will run `make format` on every commit.
+This will set up the development environment by installing backend and frontend dependencies, building the frontend static files, and initializing the project. It runs `make install_backend`, `make install_frontend`, `make build_frontend`, and finally `uv run langflow run` to start the application.
 
-It is advised to run `make lint` before pushing to the repository.
+It is advised to run `make lint`, `make format`, and `make unit_tests` before pushing to the repository.
 
 ### Run locally (Poetry and Node.js)
 
@@ -66,7 +65,7 @@ Langflow can run locally by cloning the repository and installing the dependenci
 
 Before you start, make sure you have the following installed:
 
-- Poetry (>=1.4)
+- uv (>=0.4)
 - Node.js
 
 Then, in the root folder, install the dependencies and start the development server for the backend:
@@ -81,17 +80,6 @@ And the frontend:
 make frontend
 ```
 
-
-### Run locally (docker compose)
-
-The following snippet will run the backend and frontend in separate containers. The frontend will be available at `localhost:3000` and the backend at `localhost:7860`.
-
-```bash
-docker compose up --build
-# or
-make dev build=1
-```
-
 ### Run documentation
 
 The documentation is built using [Docusaurus](https://docusaurus.io/). To run the documentation locally, run the following commands:
@@ -104,8 +92,8 @@ npm run start
 
 The documentation will be available at `localhost:3000` and all the files are located in the `docs/docs` folder.
 
-
 ## Opening a pull request
+
 Once you wrote and manually tested your change, you can start sending the patch to the main repository.
 
 - Open a new GitHub pull request with the patch against the `main` branch.

Makefile

@@ -35,10 +35,8 @@ patch: ## bump the version in langflow and langflow-base
 
 # check for required tools
 check_tools:
-	@command -v poetry >/dev/null 2>&1 || { echo >&2 "$(RED)Poetry is not installed. Aborting.$(NC)"; exit 1; }
 	@command -v uv >/dev/null 2>&1 || { echo >&2 "$(RED)uv is not installed. Aborting.$(NC)"; exit 1; }
 	@command -v npm >/dev/null 2>&1 || { echo >&2 "$(RED)NPM is not installed. Aborting.$(NC)"; exit 1; }
-	@command -v docker >/dev/null 2>&1 || { echo >&2 "$(RED)Docker is not installed. Aborting.$(NC)"; exit 1; }
 	@command -v pipx >/dev/null 2>&1 || { echo >&2 "$(RED)pipx is not installed. Aborting.$(NC)"; exit 1; }
 	@$(MAKE) check_env
 	@echo "$(GREEN)All required tools are installed.$(NC)"
@@ -85,7 +83,7 @@ init: check_tools clean_python_cache clean_npm_cache ## initialize the project
 	@make install_frontend
 	@make build_frontend
 	@echo "$(GREEN)All requirements are installed.$(NC)"
-	@python -m langflow run
+	@uv run langflow run
 
 ######################
 # CLEAN PROJECT
@@ -342,15 +340,6 @@ ifdef restore
 	mv uv.lock.bak uv.lock
 endif
 
-dev: ## run the project in development mode with docker compose
-	make install_frontend
-ifeq ($(build),1)
-	@echo 'Running docker compose up with build'
-	docker compose $(if $(debug),-f docker-compose.debug.yml) up --build
-else
-	@echo 'Running docker compose up without build'
-	docker compose $(if $(debug),-f docker-compose.debug.yml) up
-endif
 
 docker_build: dockerfile_build clear_dockerimage ## build DockerFile