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 A basic homebrew with a single job, install and uninstall unlaunch from a console.
 
 ## WARNING
-This can modify your internal system NAND! There is *always* a risk of **bricking**, albeit small, when you modify NAND. Please proceed with caution.
+This can modify your internal system NAND! There is *always* a risk of
+**bricking**, albeit small, when you modify NAND. Please proceed with caution.
 
 ## Features
-TODO
+- Safety checks to install and uninstall unlaunch without a risk of bricking
+- Fully compatible with older unlaunch installs
+- Works on every DSi, whether it's retail or development
+- Keeps a recovery copy of unlaunch in NAND to protect against future bricks
+  (only on retail consoles)
 
-## Notes
-TODO
+## Differences with official installer
+The Nintendo DSi's stage2 has a failsafe where it will load a backup launcher
+(HNAA) if it can't find the real one (eg. missing, corrupted), even on retail
+consoles.
+Whereas the official unlaunch installer appends itself to the tmd of the
+primary launcher (thus leaving the console bricked in case of failed install
+uninstall), the safe unlaunch installer takes advantage of this feature
+by installing unlaunch to the backup launcher.
+To make then stage2 actually load unlaunch from the backup launcher,
+the main TMD is "broken" by only changing a byte in it so that it skips it and
+loads the exploited one from the backup.
+This is safer than normal unlaunch installs because as long as the main TMD
+isn't touched, the system can't be bricked by those operations (apart from
+total nand failure), and the moment the main TMD is tampered with, unlaunch is
+already there as fallback in case of errors.
+Reverting this operation (thus uninstalling unlaunch) is also safer as this
+program only has to restore that previously changed byte to restore the main
+TMD, this allows to keep backup unlaunch "installed" as general brick
+protection since it won't interfere with the system.
 
 ## Credits
 - [DevkitPro](https://devkitpro.org/): devkitARM and libnds
-- [Martin Korth (nocash)](https://problemkaputt.de): [GBATEK](https://problemkaputt.de/gbatek.htm)
-- [JeffRuLz](https://github.com/JeffRuLz): [TMFH](https://github.com/JeffRuLz/TMFH) (what this is a fork of)
-- [rvtr](https://github.com/rvtr): Adding support for installing to dev/proto consoles
+- [Martin Korth (nocash)](https://problemkaputt.de):
+  [GBATEK](https://problemkaputt.de/gbatek.htm)
+- [JeffRuLz](https://github.com/JeffRuLz)/[Epicpkmn11](https://github.com/Epicpkmn11):
+  [TMFH](https://github.com/JeffRuLz/TMFH)/[NTM](https://github.com/Epicpkmn11/NTM)
+  (what this is project used as base for menus and other things)
+- [rvtr](https://github.com/rvtr):
+   Adding support for installing to dev/proto consoles and the ( ͡° ͜ʖ ͡°) icon
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