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FAQ.md

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+# Functionality
+## How does PowerTools work?
+PowerTools interacts with the system in roughly the same way as outlined in the [README](https://github.com/NGnius/PowerTools#cool-but-thats-too-much-work).
+PowerTools does not save any data; it reads and writes to the SteamOS system (mostly the Linux kernel).
+Since no data is saved, a reboot will reset all PowerTools settings back to default.
+
+## Why does PowerTools only let me select some values?
+There's a few reasons for this, depending on the values in question:
+- CPU Max Frequency: These are the only values the CPU supports
+- GPU PPT Wattage: The rest of the values can already be set from SteamOS's Performance settings in the QAM
+- Others: logical limits coming from the [specs of the Steam Deck](https://www.steamdeck.com/en/tech)
+
+## How do I reset to default settings?
+Restart your Steam Deck. Nothing in PowerTools is persistent.
+
+# TLA (Three Letter Acronyms)
+## CPU
+Central Processing Unit: the main processor, the Steam Deck uses one with Zen2 architecture
+## GPU
+Graphics Processing Unit: the graphics processor, the Steam Deck uses one with RDNA2 architecture
+## PPT
+PowerPlay Table: AMD's power settings for their GPUs
+
+# Miscellaneous
+## ;)
+Clicking where you shouldn't be, I see...
+
+## This is really great, how can I support you?
+I already make enough money, thanks. If you really want, donate to some FOSS foundation and/or support a project that's mission critical.
+