diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 1511cd5..eb1bf8e 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -6,19 +6,11 @@ name: Check
 on:
 
   push:
-    branches: [ master, dev ]
-    paths-ignore:
-      - '**/RELEASE*'
-      - '**/README*'
-      - '**/LICENSE*'
-      - 'recipe'
-      - 'docs'
-      - '.gitignore'
-      - '.github'
-      - '!.github/workflows/check*'
-      - '**/_version.py'
+    branches: [ main, master, dev ]
+    paths:
+      - '**.py'
   pull_request:
-    branches: [ master ]
+    branches: [ main, master ]
 
 jobs:
 
@@ -39,4 +31,5 @@ jobs:
     - name: Checking package
       run: |
         cd ci
-        make check-inconda
+        make check-buildenv env=check
+        conda run -n check make check
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 59fec6e..875899f 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -2,44 +2,119 @@ name: Publish
 
 on:
   push:
-    tags: releases/[1-9]+.[0-9]+.[0-9]+
-    branches: [ stable ]
+    branches:
+      - stable
+    paths:
+      - '**.py'
+      - '!tests/**'
 
 jobs:
 
-  Publish:
+  Conda-Build_Test:
     runs-on: ubuntu-latest
-
-    env:
-      ANACONDA_TOKEN: ${{secrets.ANACONDA_TOKEN}}
-      ANACONDA_USER: ${{secrets.ANACONDA_USER}}
-
     steps:
     - uses: actions/checkout@v2
-    - uses: docker://continuumio/miniconda3
-
-    - name: Updating conda
-      run: conda update --all -y
-
     - name: Installing make
-      run: conda install -y make
-
-    - name: Building package
+      run: |
+        sudo apt-get update
+        sudo apt-get -y install make
+    - name: Build conda package
       run: |
         cd ci
         make conda-build
-
-    - name: Testing package
+    - name: Test conda package
       run: |
         cd ci
         make conda-test
 
-    - name: Converting to other platforms
-      run: |
-        cd ci
-        make conda-convert
+  Tag:
+    needs: [Conda-Build_Test]
+    runs-on: ubuntu-latest
+    outputs: # Create variable usable from another job
+      new_tag: ${{ steps.tag_version.outputs.new_tag }}
+    steps:
+      ## CREATE TAG/RELEASE
+      - uses: actions/checkout@v2
+        with:
+          persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal access token.
+          fetch-depth: 0 # otherwise, there would be errors pushing refs to the destination repository.
+      - name: Bump version and push tag
+        id: tag_version
+        uses: mathieudutour/github-tag-action@v5.6
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          release_branches: stable
+          tag_prefix:
+      - name: Create Release
+        uses: actions/create-release@v1
+        with:
+          tag_name: ${{ steps.tag_version.outputs.new_tag }}
+          release_name: Release ${{ steps.tag_version.outputs.new_tag }}
+          body: ${{ steps.tag_version.outputs.changelog }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      ## UPDATE CHANGELOG
+      - uses: actions/checkout@v2
+        with:
+          persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal access token.
+          fetch-depth: 0 # otherwise, there would be errors pushing refs to the destination repository.
+      - uses: actions/setup-ruby@v1
+        # with:
+        #   ruby-version: '2.6' # Version range or exact version of a Ruby version to use, using semvers version range syntax.
+      - name: Generate CHANGELOG
+        env:
+          CHANGELOG_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gem install github_changelog_generator
+          github_changelog_generator -u brsynth -p rrparser --no-unreleased
+      - name: Update _version.py
+        env:
+          CHANGELOG_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAG: ${{ steps.tag_version.outputs.new_tag }}
+        run: |
+          folder=`dirname $(find . -name _version.py)`
+          echo "__version__ = \"$TAG\"" > $folder/_version.py
+      - name: Commit files
+        run: |
+          git config --local user.email "$GITHUB_EMAIL"
+          git config --local user.name "$GITHUB_USERNAME"
+          git commit -m "doc(CHANGELOG): update" -a
+        env:
+          GITHUB_USERNAME: brsynth
+          GITHUB_EMAIL: joan.herisson@univ-evry.fr
+      - name: Push changes
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: ${{ github.ref }}
 
-    - name: Uploading to anaconda
-      run: |
-        cd ci
-        make conda-publish
+  ## UPDATE CONDA-FORGE FEEDSTOCK
+  Feedstock:
+    needs: [Tag]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout feedstock fork
+        uses: actions/checkout@v2
+        with:
+          repository: conda-forge/rrparser-feedstock
+          persist-credentials: false
+          fetch-depth: 0
+      - name: Update recipe
+        run: |
+          wget -O- https://github.com/brsynth/rrparser/archive/refs/tags/$VERSION.tar.gz | shasum -a 256 > sha.txt
+          sha=`python -c "f = open('sha.txt'); print(f.read().split()[0]); f.close()"`
+          rm -f sha.txt
+          sed -i -E "s/(\{% set version = \")[^>]+(\" %\})/\1$VERSION\2/" recipe/meta.yaml
+          sed -i -E "s/(sha256: )[^>]+/\1$sha/" recipe/meta.yaml
+          git config --local user.email "$GITHUB_EMAIL"
+          git config --local user.name "$GITHUB_USERNAME"
+          git commit -m "chore(meta.yml): update version" -a
+        env:
+          GITHUB_USERNAME: brsynth
+          GITHUB_EMAIL: joan.herisson@univ-evry.fr
+          VERSION: ${{ needs.tag.outputs.new_tag }}
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.FEEDSTOCK }}
+          push-to-fork: brsynth/rrparser-feedstock
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5dbe728..fb91fd4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,19 +6,11 @@ name: Test
 on:
 
   push:
-    branches: [ master, dev ]
-    paths-ignore:
-      - '**/RELEASE*'
-      - '**/README*'
-      - '**/LICENSE*'
-      - 'recipe'
-      - 'docs'
-      - '.gitignore'
-      - '.github'
-      - '!.github/workflows/test*'
-      - '**/_version.py'
+    branches: [ main, master, dev ]
+    paths:
+      - '**.py'
   pull_request:
-    branches: [ master ]
+    branches: [ main, master ]
 
 jobs:
 
@@ -39,4 +31,5 @@ jobs:
     - name: Testing package
       run: |
         cd ci
-        make test-inconda
+        make test-buildenv env=test
+        conda run -n test make test
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..12124e4
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+# Changelog
+
+## [2.4.1]
\ No newline at end of file
diff --git a/README.md b/README.md
index 14aaa68..b1e07af 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,11 @@
-# RRParser
+# rrparser
+Reaction Rules Parser
+| Name | Downloads | Version | Platforms |
+| --- | --- | --- | --- |
+| [![Conda Recipe](https://img.shields.io/badge/recipe-rrparser-green.svg)](https://anaconda.org/conda-forge/rrparser) | [![Conda Downloads](https://img.shields.io/conda/dn/conda-forge/rrparser.svg)](https://anaconda.org/conda-forge/rrparser) | [![Conda Version](https://img.shields.io/conda/vn/conda-forge/rrparser.svg)](https://anaconda.org/conda-forge/rrparser) | [![Conda Platforms](https://img.shields.io/conda/pn/conda-forge/rrparser.svg)](https://anaconda.org/conda-forge/rrparser) |
 
-[![Anaconda-Server Badge](https://anaconda.org/brsynth/rrparser/badges/latest_release_date.svg)](https://anaconda.org/brsynth/rrparser) ![Test](https://github.com/brsynth/RRulesParser/workflows/Test/badge.svg) [![Anaconda-Server Badge](https://anaconda.org/brsynth/rrparser/badges/version.svg)](https://anaconda.org/brsynth/rrparser)
-
-Reaction Rules Parser. If no input reaction files is provided, retrieves the reaction rules from [RetroRules](https://retrorules.org).
+## Description
+*Reaction Rules Parser*. If no input reaction files is provided, retrieves the reaction rules from [RetroRules](https://retrorules.org).
 
 ## Input
 
@@ -17,7 +20,7 @@ Reaction Rules Parser. If no input reaction files is provided, retrieves the rea
 ## Install
 ### From Conda
 ```sh
-[sudo] conda install -c brsynth rrparser
+[sudo] conda install -c conda-forge rrparser
 ```
 
 ## Use
@@ -26,12 +29,14 @@ Reaction Rules Parser. If no input reaction files is provided, retrieves the rea
 ```python
 from rrparser import parse_rules
 
-outfile = parse_rules(<rules_file>,
-                      <outfile>,
-                      input_format=<'csv' | 'tsv'>,
-                      rule_type=<'all' | 'retro' | 'forward'>,
-                      diameters=<'2,4,6,8,10,12,14,16'>,
-                      output_format=<'csv' | 'tsv'>)
+outfile = parse_rules(
+  <rules_file>,
+  <outfile>,
+  input_format=<'csv' | 'tsv'>,
+  rule_type=<'all' | 'retro' | 'forward'>,
+  diameters=<'2,4,6,8,10,12,14,16'>,
+  output_format=<'csv' | 'tsv'>
+)
 ```
 
 If parameters from CLI have to be parsed, the function `build_args_parser` is available:
@@ -59,8 +64,7 @@ Test can be run with the following commands:
 
 ### Natively
 ```bash
-cd tests
-pytest -v
+python -m pytest -v
 ```
 
 # CI/CD
diff --git a/ci/.env b/ci/.ci_env
similarity index 100%
rename from ci/.env
rename to ci/.ci_env
diff --git a/ci/LICENSE b/ci/LICENSE
index 9894a3c..259197b 100644
--- a/ci/LICENSE
+++ b/ci/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020 Jean-Loup Faulon's group & INRA
+Copyright (c) 2020 Jean-Loup Faulon's group & INRAE
 Copyright (c) 2020 University of Evry / Paris-Saclay
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/ci/Makefile b/ci/Makefile
index 804b56b..04d55aa 100644
--- a/ci/Makefile
+++ b/ci/Makefile
@@ -1,8 +1,9 @@
 SHELL := /bin/bash
 SELF_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
+PACKAGE = $(shell python ../setup.py --name)
+
+include $(SELF_DIR)/.ci_env
 
-include $(SELF_DIR)/.env
-include $(SELF_DIR)/../extras/.env
 
 # HELP
 # This will output the help for each task
@@ -34,14 +35,20 @@ check: ## Test code with 'pytest', this is the fastest way to test the code
 test: ## Test code with 'pytest', this is the fastest way to test the code
 	   @$(MAKE_CMD) -f test.mk test args="$(args)"
 
-%-inconda: ## Test conda package
+%-buildenv: ## Test conda package
 ifneq ($(strip $(env)),)
 	$(eval env=${PACKAGE}_$*)
 endif
-	@$(MAKE_CMD) -f conda.mk check-environment-$* env=$(env)
-	@$(MAKE_CMD) -f conda.mk conda-run-env env=$(env) \
-										   cmd="make -C .. $*" \
-										   args="$(args)"
+	@$(MAKE_CMD) -f conda.mk build-environment-$* env=$(env)
+
+# %-inconda: ## Test conda package
+# ifneq ($(strip $(env)),)
+# 	$(eval env=${PACKAGE}_$*)
+# endif
+# 	@$(MAKE_CMD) -f conda.mk check-environment-$* env=$(env)
+# 	@$(MAKE_CMD) -f conda.mk conda-run-env env=$(env) \
+# 										   cmd="make -C .. $*" \
+# 										   args="$(args)"
 
 
 conda-all: conda-build conda-test conda-convert conda-publish ## (default) Perform all conda process (build, test, convert, publish)
@@ -64,3 +71,6 @@ conda-check-recipe: ## Check conda recipe
 
 conda-create-run_env: ## Make an conda environment to run program
 	@$(MAKE_CMD) -f conda.mk check-environment-test env=${PACKAGE}_test
+
+doc-pdoc:
+	cd .. ; rm -rf chemlite/__pycache__ ; pdoc --force --html -o docs chemlite
\ No newline at end of file
diff --git a/ci/makefiles/conda.mk b/ci/makefiles/conda.mk
index 2363524..a247abd 100644
--- a/ci/makefiles/conda.mk
+++ b/ci/makefiles/conda.mk
@@ -1,12 +1,21 @@
-include ../../extras/.env
-include ../.env
+include ../.ci_env
 
 SHELL := /bin/bash
-
-tmpfile := $(shell mktemp -u)
-tmpdir  := $(shell dirname $(tmpfile))
-
+PACKAGE = $(shell python ../../setup.py --name)
 PLATFORM = $(shell conda info | grep platform | awk '{print $$3}')
+recipe := ../recipe
+meta := meta.yaml
+
+build-recipe:
+	echo "{% set name = \"${PACKAGE}\" %}" > $(recipe)/$(meta)
+	cat $(recipe)/_meta1.yaml >> $(recipe)/$(meta)
+	sed -ne '/^dependencies:$$/{:a' -e 'n;p;ba' -e '}' ../../environment.yaml | awk '{print "    - "$$2}' >> $(recipe)/$(meta)
+	cat $(recipe)/_meta2.yaml >> $(recipe)/$(meta)
+	$(MAKE_CMD) -f test.mk test-deps >> $(recipe)/$(meta)
+	cat $(recipe)/_meta3.yaml >> $(recipe)/$(meta)
+	echo "    - `$(MAKE_CMD) -f test.mk test-cmd`" >> $(recipe)/$(meta)
+	cat $(recipe)/_meta4.yaml >> $(recipe)/$(meta)
+	awk '/channels/,/dependencies/{if(/dependencies|channels/) next; print}' ../../environment.yaml | awk '{print $$2}' > $(recipe)/conda_channels.txt
 
 # HELP
 # This will output the help for each task
@@ -25,14 +34,15 @@ help-advanced: ## Advanced help.
 ARGS = $(filter-out $@,$(MAKECMDGOALS))
 CONDA_BUILD_ARGS = --quiet --numpy 1.11
 MAKE_CMD = $(MAKE) -s --no-print-directory
-ECHO = echo -n ">>>"
+ECHO = echo ">>>"
 
 clean: conda-clean-build
 
 #python_versions = $(shell cat ../recipe/conda_build_config.yaml | awk 'NR>1 {print $$2}')
-recipe_channels = $(shell cat ../../recipe/conda_channels.txt)
+recipe_channels = $(shell cat $(recipe)/conda_channels.txt)
 conda_channels  = $(shell conda config --show channels | awk '{print $2}')
 
+
 define check
 	$(1) && echo OK
 endef
@@ -59,7 +69,7 @@ endif
 ### check recipe
 conda-recipe-check:
 	@$(ECHO) "Checking the recipe... "
-	@conda build --check $(CONDA_BUILD_ARGS) ../../recipe > /dev/null \
+	@conda build --check $(CONDA_BUILD_ARGS) $(recipe) > /dev/null \
 	&& echo OK
 ### clean build products
 conda-clean-build:
@@ -80,9 +90,9 @@ endif
 
 ## CONDA BUILD
 ### build only
-conda-build-only: check-environment-build
+conda-build-only: check-environment-build build-recipe
 	@$(ECHO) "Building conda package... "
-	@conda run --name ${PACKAGE}_build conda build --no-test $(CONDA_BUILD_ARGS) $(VARIANTS) --output-folder ${CONDA_BLD_PATH} ../../recipe > /dev/null \
+	@conda run --name ${PACKAGE}_build conda build --no-test $(CONDA_BUILD_ARGS) $(VARIANTS) --output-folder ${CONDA_BLD_PATH} $(recipe) > /dev/null \
 	&& echo OK
 
 conda-test-only: check-environment-build conda-add-channels
@@ -94,7 +104,7 @@ conda-test-only: check-environment-build conda-add-channels
 conda-build: conda-build-test
 conda-build: check-environment-build conda-add-channels
 	@$(ECHO) "Building and Testing conda package... "
-	@conda run --name ${PACKAGE}_build conda build $(CONDA_BUILD_ARGS) $(VARIANTS) --output-folder ${CONDA_BLD_PATH} ../../recipe > /dev/null \
+	@conda run --name ${PACKAGE}_build conda build $(CONDA_BUILD_ARGS) $(VARIANTS) --output-folder ${CONDA_BLD_PATH} $(recipe) > /dev/null \
 	&& echo OK
 
 conda-convert: check-conda
@@ -150,7 +160,7 @@ else
 endif
 check-conda-build:
 ifeq (False,$(HAS_CONDA_BUILD))
-	echo conda env -n $(PACKAGE)_build create -f ../../recipe/conda_build_env.yaml
+	echo conda env -n $(PACKAGE)_build create -f $(recipe)/conda_build_env.yaml
 endif
 
 ## Check anaconda-client
@@ -164,35 +174,24 @@ ifeq (False,$(HAS_ANACONDA_CLIENT))
 	@$(MAKE_CMD) -f conda.mk conda-install-anaconda-client channel=conda-forge
 endif
 
-ifeq (,$(shell conda list | grep pyyaml))
-    HAS_PYYAML=False
-else
-    HAS_PYYAML=True
-endif
-## Check pyyaml
-check-pyyaml:
-ifeq (False,$(HAS_PYYAML))
-	@$(MAKE_CMD) -f conda.mk conda-install-pyyaml channel=conda-forge
-endif
 
-build_env_file := ../../recipe/conda_build_env.yaml
+build_env_file := $(recipe)/conda_build_env.yaml
 check_env_file := ../test/check-environment.yml
-test_env_file  := $(tmpdir)/$(shell mktemp -u XXXXXX-${PACKAGE}_test_env.yml)
-build_env_file:
-	@
-check_env_file:
-	@
-test_env_file: check-pyyaml
-	@python3 ../$(TEST_PATH)/parse_recipe.py req > $(test_env_file)
-check-environment-%: check-conda %_env_file
+test_env_file  := ../../environment.yaml
+
+
+check-environment-%: check-conda build-environment-%
+	@$(ECHO) OK
+
+build-environment-%: check-conda
 ifneq ("$(wildcard $(MY_ENV_DIR))","") # check if the directory is there
-		@$(ECHO) "'$(env)' environment already exists.\n"
+	@$(ECHO) "'$(env)' environment already exists."
 else
-		@$(ECHO) "Creating '$(env)' environment... "
-		@conda env create -n $(env) -f $($(*)_env_file) > /dev/null
-		@echo OK
+	@$(ECHO) "Creating '$(env)' environment... "
+	@conda env create -n $(env) -f $($(*)_env_file) > /dev/null
+	@conda run --name $(env) conda install `make -f test.mk test-deps | awk {'print $$2'} | tr '\n' ' '` > /dev/null
+	@echo OK
 endif
-		@rm -f $(test_env_file)
 
 conda-run-env:
 ifneq ($(strip $(cmd)),)
diff --git a/ci/makefiles/test.mk b/ci/makefiles/test.mk
index c57dd83..b99c7d1 100644
--- a/ci/makefiles/test.mk
+++ b/ci/makefiles/test.mk
@@ -1,5 +1,4 @@
-include ../../extras/.env
-include ../.env
+include ../.ci_env
 
 SHELL := /bin/bash
 
@@ -13,9 +12,28 @@ help:
 
 .DEFAULT_GOAL := all
 
-MAKE_CMD = $(MAKE) -s --no-print-directory
-ECHO = echo -n ">>>"
+MAKE_CMD = $(MAKE) -f test.mk -s --no-print-directory
+ECHO = echo ">>>"
 
+PACKAGE = $(shell python ../../setup.py --name)
+
+ifeq ($(args),)
+	test_src := tests
+else
+	test_src = $(args)
+endif
+test_cmd := python -m pytest -v --cov --cov-report term-missing
+define test_deps
+    - pytest
+    - pytest-cov
+    - pytest-mock
+endef
+export test_deps
+
+test-cmd:
+	@echo $(test_cmd)
+test-deps:
+	@echo "$$test_deps"
 
 all: check test ## Run check and test code
 
@@ -26,25 +44,22 @@ bandit: ## Run bandit over code
 	# -lll to only catch the higher level security issues
 	@bandit -r -lll ../../${PACKAGE}
 flake: ## Run flake over code and tests
-	@echo "=== FLAKE REPORT ==="
+	echo "=== FLAKE REPORT ==="
 	# stop the build if there are Python syntax errors or undefined names
-	@flake8 ../../${PACKAGE} --count --select=E9,F63,F7,F82 --show-source --statistics
+	flake8 ../../${PACKAGE} --count --select=E9,F63,F7,F82 --show-source --statistics
 	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-	@flake8 ../../${PACKAGE} --count --ignore=E272,E501,E266,E241,E226,E251,E303,E221 --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+	flake8 ../../${PACKAGE} --count --ignore=E272,E501,E266,E241,E226,E251,E303,E221 --exit-zero --max-complexity=10 --max-line-length=127 --statistics
 	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-	@flake8 ../../tests --count --ignore=E272,E501,E266,E241,E226,E251,E303,E221,E122,E211,E302 --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+	flake8 ../../$(test_src) --count --ignore=E272,E501,E266,E241,E226,E251,E303,E221,E122,E211,E302 --exit-zero --max-complexity=10 --max-line-length=127 --statistics
 
-# TEST
-$(eval test_cmd := $(shell python3 ../test/parse_recipe.py test cmd))
-ifeq ($(args),)
-	test_src = $(shell python3 ../test/parse_recipe.py test src)
-else
-	test_src = $(args)
-endif
 
+# TEST
 test: ## Test code with 'pytest'
-	@$(ECHO) "Testing...\n"
 	@export PYTHONPATH=$$PWD/../.. ; \
 	cd ../.. ; \
-	$(test_cmd) -p no:cacheprovider $(test_src) \
-	&& echo OK
+	$(test_cmd) -p no:cacheprovider $(test_src) ; \
+	res_test=$$? ; \
+	if [ $$res_test -eq 0 ] || [ $$res_test -eq 5 ] ; then \
+		exit 0 ; \
+	fi
+
diff --git a/ci/recipe/.gitignore b/ci/recipe/.gitignore
new file mode 100644
index 0000000..472c7ed
--- /dev/null
+++ b/ci/recipe/.gitignore
@@ -0,0 +1,3 @@
+meta.yml
+conda_channels.txt
+meta.yaml
\ No newline at end of file
diff --git a/ci/recipe/_meta1.yaml b/ci/recipe/_meta1.yaml
new file mode 100644
index 0000000..4aba52a
--- /dev/null
+++ b/ci/recipe/_meta1.yaml
@@ -0,0 +1,18 @@
+{% set data = load_setup_py_data() %}
+
+package:
+  name: {{ name|lower }}
+  version: {{ data['version'] }}
+
+source:
+  path: ../..
+
+build:
+  number: 0
+  script: {{ PYTHON }} -m pip install --no-deps --ignore-installed -vv .
+
+requirements:
+  host:
+    - python {{ python }}
+  run:
+    - python {{ python }}
diff --git a/ci/recipe/_meta2.yaml b/ci/recipe/_meta2.yaml
new file mode 100644
index 0000000..ed1c736
--- /dev/null
+++ b/ci/recipe/_meta2.yaml
@@ -0,0 +1,7 @@
+
+test:
+  source_files:
+    - tests
+  imports:
+    - {{ name|lower }}
+  requires:
diff --git a/ci/recipe/_meta3.yaml b/ci/recipe/_meta3.yaml
new file mode 100644
index 0000000..8646caa
--- /dev/null
+++ b/ci/recipe/_meta3.yaml
@@ -0,0 +1,2 @@
+  commands:
+    - python -m {{ name|lower }} --help
diff --git a/ci/recipe/_meta4.yaml b/ci/recipe/_meta4.yaml
new file mode 100644
index 0000000..dcc65a1
--- /dev/null
+++ b/ci/recipe/_meta4.yaml
@@ -0,0 +1,12 @@
+
+about:
+  home: https://github.com/brsynth/{{ name|lower }}
+  summary: {{ data['description'] }}
+  license: {{ data.get('license') }}
+  license_file: LICENSE
+
+extra:
+  recipe-maintainers:
+    # GitHub IDs for maintainers of the recipe.
+    # Always check with the people listed below if they are OK becoming maintainers of the recipe. (There will be spam!)
+    - breakthewall
diff --git a/recipe/conda_build_config.yaml b/ci/recipe/conda_build_config.yaml
similarity index 80%
rename from recipe/conda_build_config.yaml
rename to ci/recipe/conda_build_config.yaml
index 43e465c..293f77e 100644
--- a/recipe/conda_build_config.yaml
+++ b/ci/recipe/conda_build_config.yaml
@@ -1,5 +1,4 @@
 python:
-  - 3.6
   - 3.7
   - 3.8
   - 3.9
diff --git a/recipe/conda_build_env.yaml b/ci/recipe/conda_build_env.yaml
similarity index 90%
rename from recipe/conda_build_env.yaml
rename to ci/recipe/conda_build_env.yaml
index 91e3173..135c3b3 100644
--- a/recipe/conda_build_env.yaml
+++ b/ci/recipe/conda_build_env.yaml
@@ -5,4 +5,4 @@ channels:
 dependencies:
   - python < 3.9  # TD: anaconda upload has troubles with python 3.9 (base64.encodestring alias removed)
   - conda-build
-  - anaconda-client
+#  - anaconda-client
diff --git a/ci/test/parse_recipe.py b/ci/test/parse_recipe.py
deleted file mode 100644
index 85c5fc7..0000000
--- a/ci/test/parse_recipe.py
+++ /dev/null
@@ -1,79 +0,0 @@
-from yaml     import safe_load as yaml_safe_load
-from yaml     import YAMLError
-from os       import path      as os_path
-from shutil   import copyfile
-from tempfile import NamedTemporaryFile
-from sys      import argv as sys_argv
-
-current_folder = os_path.dirname(os_path.realpath(__file__))
-
-# input files
-channels_file = current_folder+'/../../recipe/conda_channels.txt'
-recipe_file   = current_folder+'/../../recipe/meta.yaml'
-bld_cfg_file  = current_folder+'/../../recipe/conda_build_config.yaml'
-
-def parse_meta(filename):
-
-    recipe = ''
-    with open(filename, 'r') as f:
-        line = f.readline()
-        while line:
-            # filter all non-YAML elements
-            if not line.startswith('{%') and '{{' not in line:
-                recipe += line
-            line = f.readline()
-
-    requirements = []
-    tests = {}
-    try:
-        try: requirements += yaml_safe_load(recipe)['requirements']['host']
-        except TypeError: pass
-        try: requirements += yaml_safe_load(recipe)['requirements']['run']
-        except TypeError: pass
-        try: requirements += yaml_safe_load(recipe)['test']['requires']
-        except TypeError: pass
-        tests['commands']     = yaml_safe_load(recipe)['test']['commands']
-        tests['source_files'] = yaml_safe_load(recipe)['test']['source_files']
-    except YAMLError as exc:
-        print(exc)
-
-    return requirements, tests
-
-
-
-
-if __name__ == '__main__':
-
-    requirements, tests = parse_meta(recipe_file)
-
-    if any(arg in sys_argv for arg in ['test']):
-        if len(sys_argv) < 3:
-            args = 'commands sources'
-        else:
-            args = sys_argv
-        if any(arg in args for arg in ['commands', 'cmd']):
-            print(' && '.join(tests['commands']), end=' ')
-        if any(arg in args for arg in ['sources', 'src']):
-            print(' '.join(['../'+e for e in tests['source_files']]))
-        else:
-            print()
-
-    if any(arg in sys_argv for arg in ['requirements', 'req']):
-        print('channels:')
-        print('\n'.join(['  - '+c for c in open(channels_file, 'r').read().split()]))
-        print('dependencies:')
-        print('\n'.join(['  - '+c for c in requirements]))
-        print('  - pyyaml')
-        exit()
-
-        print(' '.join(['-c '+c for c in open(channels_file, 'r').read().split()]))
-        if len(sys_argv) < 3:
-            args = 'channels packages'
-        else:
-            args = sys_argv
-        if any(arg in args for arg in ['channels']):
-            print(' '.join(['-c '+c for c in open(channels_file, 'r').read().split()]), end=' ')
-        if any(arg in args for arg in ['packages', 'pkg']):
-            print(' '.join(requirements))
-        else:
-            print()
diff --git a/ci/workflows/github/check.yml b/ci/workflows/github/check.yml
deleted file mode 100644
index 7170665..0000000
--- a/ci/workflows/github/check.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
-name: Check
-
-on:
-
-  push:
-    branches: [ main, master, dev ]
-    paths-ignore:
-      - '**/RELEASE*'
-      - '**/README*'
-      - '**/LICENSE*'
-      - 'recipe'
-      - 'docs'
-      - '.gitignore'
-      - '.github'
-      - '!.github/workflows/check*'
-  pull_request:
-    branches: [ master ]
-
-jobs:
-
-  Check:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - uses: docker://continuumio/miniconda3
-
-    - name: Updating conda
-      run: conda update --all -y
-
-    - name: Installing make
-      run: conda install -y make
-
-    - name: Checking package
-      run: |
-        cd ci
-        make check-inconda
diff --git a/ci/workflows/github/publish.yml b/ci/workflows/github/publish.yml
deleted file mode 100644
index 59fec6e..0000000
--- a/ci/workflows/github/publish.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-name: Publish
-
-on:
-  push:
-    tags: releases/[1-9]+.[0-9]+.[0-9]+
-    branches: [ stable ]
-
-jobs:
-
-  Publish:
-    runs-on: ubuntu-latest
-
-    env:
-      ANACONDA_TOKEN: ${{secrets.ANACONDA_TOKEN}}
-      ANACONDA_USER: ${{secrets.ANACONDA_USER}}
-
-    steps:
-    - uses: actions/checkout@v2
-    - uses: docker://continuumio/miniconda3
-
-    - name: Updating conda
-      run: conda update --all -y
-
-    - name: Installing make
-      run: conda install -y make
-
-    - name: Building package
-      run: |
-        cd ci
-        make conda-build
-
-    - name: Testing package
-      run: |
-        cd ci
-        make conda-test
-
-    - name: Converting to other platforms
-      run: |
-        cd ci
-        make conda-convert
-
-    - name: Uploading to anaconda
-      run: |
-        cd ci
-        make conda-publish
diff --git a/ci/workflows/github/test.yml b/ci/workflows/github/test.yml
deleted file mode 100644
index f4287d3..0000000
--- a/ci/workflows/github/test.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
-name: Test
-
-on:
-
-  push:
-    branches: [ main, master, dev ]
-    paths-ignore:
-      - '**/RELEASE*'
-      - '**/README*'
-      - '**/LICENSE*'
-      - 'recipe'
-      - 'docs'
-      - '.gitignore'
-      - '.github'
-      - '!.github/workflows/test*'
-  pull_request:
-    branches: [ master ]
-
-jobs:
-
-  Test:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - uses: docker://continuumio/miniconda3
-
-    - name: Updating conda
-      run: conda update --all -y
-
-    - name: Installing make
-      run: conda install -y make
-
-    - name: Testing package
-      run: |
-        cd ci
-        make test-inconda
diff --git a/environment.yaml b/environment.yaml
new file mode 100644
index 0000000..68c48be
--- /dev/null
+++ b/environment.yaml
@@ -0,0 +1,8 @@
+name: rrparser-dev
+channels:
+  - conda-forge
+dependencies:
+  - python
+  - brs_utils
+  - pandas
+  - colorlog
diff --git a/extras/.env b/extras/.env
deleted file mode 100644
index 112894d..0000000
--- a/extras/.env
+++ /dev/null
@@ -1,6 +0,0 @@
-PACKAGE=rrparser
-URL=https://github.com/brsynth/RRulesParser
-AUTHORS='Thomas Duigou, Melchior du Lac, Joan Hérisson'
-CORR_AUTHOR=joan.herisson@univ-evry.fr
-DESCR='Reaction Rules Parser'
-HOMEDIR=/home
diff --git a/recipe/conda_channels.txt b/recipe/conda_channels.txt
deleted file mode 100644
index 80eb489..0000000
--- a/recipe/conda_channels.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-brsynth
-conda-forge
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
deleted file mode 100644
index c2d7a67..0000000
--- a/recipe/meta.yaml
+++ /dev/null
@@ -1,46 +0,0 @@
-{% set name = "rrparser" %}
-{% set data = load_setup_py_data() %}
-
-package:
-  name: {{ name|lower }}
-  version: {{ data['version'] }}
-
-source:
-  path: ..
-
-build:
-  number: 0
-  script: {{ PYTHON }} -m pip install --no-deps --ignore-installed -vv .
-
-requirements:
-  host:
-    - python {{ python }}
-  run:
-    - python {{ python }}
-    - pandas
-    - brs_utils
-    - colorlog
-
-test:
-  source_files:
-    - tests
-  imports:
-    - {{ name|lower }}
-  requires:
-    - pytest
-  commands:
-    - python -m {{ name|lower }} --help
-    - cd tests
-    - python -m pytest -v
-
-about:
-  home: https://github.com/brsynth/{{ name|lower }}
-  summary: {{ data['description'] }}
-  license: {{ data.get('license') }}
-  license_file: LICENSE
-
-extra:
-  recipe-maintainers:
-    # GitHub IDs for maintainers of the recipe.
-    # Always check with the people listed below if they are OK becoming maintainers of the recipe. (There will be spam!)
-    - breakthewall
diff --git a/setup.py b/setup.py
index 1b9373d..2e7aa65 100644
--- a/setup.py
+++ b/setup.py
@@ -1,58 +1,60 @@
 from setuptools import setup
-from os         import path   as os_path
-from re         import search as re_search
+from os import path as os_path
 
-_readme = 'README.md'
 
-with open(_readme, 'r', encoding='utf-8') as f:
-    long_description = f.read()
-
-_extras_path = 'extras'
-with open(_extras_path+'/.env', 'r', encoding='utf-8') as f:
-    for line in f:
-        if line.startswith('PACKAGE='):
-            _package = line.splitlines()[0].split('=')[1].lower()
-        if line.startswith('URL='):
-            _url = line.splitlines()[0].split('=')[1].lower()
-        if line.startswith('AUTHORS='):
-            _authors = line.splitlines()[0].split('=')[1].lower()
-        if line.startswith('DESCR='):
-            _descr = line.splitlines()[0].split('=')[1].lower()
-        if line.startswith('CORR_AUTHOR='):
-            _corr_author = line.splitlines()[0].split('=')[1].lower()
+## INFOS ##
+package     = 'rrparser'
+descr       = 'Reaction Rules Parser'
+url         = 'https://github.com/brsynth/rrparser'
+authors     = 'Joan Hérisson, Melchior du Lac, Thomas Duigou'
+corr_author = 'joan.herisson@univ-evry.fr'
 
-_release = 'RELEASE'
-_version = os_path.join(
-    _package,
-    '_version.py'
-)
-# with open(_release, 'r') as f:
-#     _version = f.readline().split()[0]
-with open(_version, 'r') as f:
-    m = re_search('"(.+)"', f.readline().split('=')[1])
-    if m:
-        version = m.group(1)
+## LONG DESCRIPTION
+with open(
+    os_path.join(
+        os_path.dirname(os_path.realpath(__file__)),
+        'README.md'
+    ),
+    'r',
+    encoding='utf-8'
+) as f:
+    long_description = f.read()
 
+def get_version():
+    with open(
+        os_path.join(
+            os_path.dirname(os_path.realpath(__file__)),
+            'CHANGELOG.md'
+        ),
+        'r'
+    ) as f:
+        lines = f.readlines()
+    for line in lines:
+        if line.startswith('##'):
+            from re import search
+            m = search("\[(.+)\]", line)
+            if m:
+                return m.group(1)
 
 setup(
-    name                          = _package,
-    version                       = version,
-    author                        = _authors,
-    author_email                  = _corr_author,
-    description                   = _descr,
+    name                          = package,
+    version                       = get_version(),
+    author                        = authors,
+    author_email                  = corr_author,
+    description                   = descr,
     long_description              = long_description,
     long_description_content_type = 'text/markdown',
-    url                           = _url,
-    packages                      = [_package],
-    package_dir                   = {_package: _package},
+    url                           = url,
+    packages                      = [package],
+    package_dir                   = {package: package},
     include_package_data          = True,
-    # install_requires              = required,
     test_suite                    = 'pytest',
     license                       = 'MIT',
-    classifiers=[
+    classifiers                   = [
         'Programming Language :: Python :: 3',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
     ],
-    python_requires               = '>=3.5',
+    python_requires               = '>=3.7',
 )
+