There appears to be no issues with the functionality of the mod. Though the changes in outside.gd and exploration.gd are significantly larger than they need to be, thus more likely to conflict with other mods.
The current mod system is able to handle more than one mod editing a file without issue depending on the mods. It can even handle more than one mod editing the same definition some of the time (the bugfix mod fixes most of those issues).
Your mod replaces the entire functions, so any other mods that change those functions can only be line edit mods applied after your replacements. Two mods that replace the same function will always conflict.
I recommend the Discord(https://itch.io/t/284398/discord) for help creating mods, we tend to have several knowledgeable modders on there.