I've tried adding two more mods to my folder, but the game's not reading them. I checked them for errors and they were fine, given they were mostly copy-pasted from already successful mods.

Here are their codes (and spoilers for what they're going to be).

{
"ModDefinition": {
"name": "Merasmus as Tomomo",
"description": "Replaces Tomomo's voice (both standard and Casual/Sweet Eater) with Merasmus from Team Fortress 2. Because he doesn't have specific Domination lines, I used the same four lines for Tomomo's interaction with specific characters.",
"author": "ragnacrap",
"system_version": 2,
"changelog": "",
"contest": false,
"color": "#ff0000"
},
"ModReplacements": {
"textures": [],
"music": [],
"voices": {
"character": [
"voice_cha_tmsw",
"voice_cha_tomomo",
],
"system": []
},
"hair_color": [],
"sound_effects": []
}
}

And here's my other.

{
"ModDefinition": {
"name": "Team Fortress 2 Victory Music",
"description": "Replaces the victory music with the Victory announcement from Team Fortress 2.",
"author": "ragnacrap",
"system_version": 2,
"changelog": "",
"contest": false,
"color": "#fcb8d9"
},
"ModReplacements": {
"textures": [],
"music": [],
"voices": {
"character": [],
"system": []
},
"hair_color": [],
"sound_effects": [
"win.wav"
]
}
}