diff --git a/db_sync_tests/scripts/postgres-start.sh b/db_sync_tests/scripts/postgres-start.sh
index f50a6436..a34f876f 100755
--- a/db_sync_tests/scripts/postgres-start.sh
+++ b/db_sync_tests/scripts/postgres-start.sh
@@ -1,4 +1,4 @@
-#! /usr/bin/env -S nix develop --accept-flake-config .#postgres -i -k PGHOST -k PGPORT -k PGUSER -c bash
+#! /usr/bin/env -S nix develop --accept-flake-config github:input-output-hk/cardano-node-tests#postgres -i -k PGHOST -k PGPORT -k PGUSER -c bash
 # shellcheck shell=bash
 
 set -euo pipefail
diff --git a/db_sync_tests/tests/full_sync_from_clean_state.py b/db_sync_tests/tests/full_sync_from_clean_state.py
index e6e35a68..e2403960 100644
--- a/db_sync_tests/tests/full_sync_from_clean_state.py
+++ b/db_sync_tests/tests/full_sync_from_clean_state.py
@@ -172,7 +172,7 @@ def main():
     NODE_DIR=clone_repo('cardano-node', node_version_from_gh_action)
     os.chdir(NODE_DIR)
     execute_command("nix build -v .#cardano-node -o cardano-node-bin")
-    execute_command("nix build -v --debug .#cardano-cli -o cardano-cli-bin")
+    execute_command("nix-build -v -A cardano-cli -o cardano-cli-bin")
 
     print("--- Node setup")
     copy_node_executables(build_method="nix")
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0f89e9b8..d545e539 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,6 +3,7 @@
 # linting
 mypy
 pre-commit
-pylint
+pylint==2.15.5
 types-PyYAML
 types-requests
+
diff --git a/setup.cfg b/setup.cfg
index ae1ebb57..b0ad32d7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,3 +1,19 @@
+[flake8]
+ignore = E128,E811,W503,E203,PT001,PT004,PT007,PT012,PT018,PT023,PL123
+max_line_length = 100
+
+[pydocstyle]
+inherit = false
+# google convention + D413
+ignore = D10,D203,D212,D213,D214,D215,D404,D405,D406,D407,D408,D409,D410,D411,D413
+match = .*\.py
+
+[rstcheck]
+ignore_directives =
+    automodule,
+    mdinclude,
+ignore_messages=(Undefined substitution referenced: \":)
+
 [metadata]
 name = cardano-sync-tests
 url = https://github.com/IntersectMBO/cardano-sync-tests
@@ -11,6 +27,7 @@ classifiers =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
     Intended Audience :: Developers
 
 [options]
@@ -29,3 +46,4 @@ install_requires =
     pymysql
     requests
     setuptools >= 60.5.0
+