Just found another save file
// spoilers
By editing the sav file to use the phrase "Do You", you'll appear in a greybox version of the house. Not sure what to do yet. Seems like the only thing you can interact with is the computer over and over.

We already knew most of the sav phrases, so I started up the game and on the main menu used cheat engine to search for any uses of one of those strings and looked around in the memory nearby to find it.
As for editing the sav file, you can use a hex editor like HxD to open the file and near the bottom you'll find an English string depending on which part of the game you're at. New saves don't have these strings, so you'll have to get to another scene like the void room with the hidden paths (the string will be "The Time") and edit the file then.
You can use a hex editor like HxD to open the file and near the bottom you'll find an English string depending on which part of the game you're at. New saves don't have these strings, so you'll have to get to another scene like the void room with the hidden paths (the string will be "The Time") and edit the file then.