direnv and .envrc can specify version?

[roccho-dev]

https://github.com/jdx/rtx?tab=readme-ov-file#direnv

After reading here, I recognized and configured the current state of rtx as follows

• I installed rtx install node@lts first, which resulted in ver. 20 being installed
• rtx activate conflicts with direnv
• In fact, in my environment, rtx activate does not work when .envrc is automatically loaded
• So, I followed the above readme, set up use_rtx.sh and put the runtime version RTX_NODE_VERSION=19.0.0 in the .envrc.

However, in the directory where .envrc is loaded, the environment variable is updated to ver. 19, but node -v outputs ver. 20.

Am I forgetting something?