diff --git a/todo.md b/todo.md
index e01d312..94d013a 100644
--- a/todo.md
+++ b/todo.md
@@ -1,7 +1,7 @@
 # VIV Todo's
 
-- [ ] swap flake8 for ruff
+- [x] swap flake8 for ruff
 - [ ] add classifiers for pypi?
-- [ ] use config file (probably ini or json / could also allow toml for python>=3.11)
+- [ ] use config file (probably ini or toml for python>=3.11)
 - [ ] enable a garbage collection based on time or file existence (configurable)
-- [ ] unit tests
+- [ ] unit tests (v important)