Hello and welcome to Reswitched Weekly, a weekly summary of the progress made by the reswitched team and wider community around homebrew development for the Nintendo Switch.

Another eventful week ! Hacks were written up, emulators were ported, work was done.

What happened

• @SciresM published a writeup of his 1.0.0 tzhax, called “jamais vu”. You really should go read it here. And for those following us at home: You’ll know if you got jamais vu working right if

  sha512(master_key for 1.0.0-2.3.0) == AD4E1C54708214F661D95AA97A47A71EDF63D3CE3B358282B5665DA67E2FE6616D263D17C9E750DE38845AB0F3F4DD5032E7E4030741B59A0A71B6B34AB9F331
  

• @SciresM also released NCA tool, a tool allowing manipulation and decryption of NCAs. You need to bring your own keys. Check it out.

• @misson20000 implemented the hb-abi, which allows libnx and libtransistor to be compatible at the loader level! PR.

  NOTE: You will need to update pegaswitch, libtransistor and ace_loader, and recompile all your NROs with this new change. It is a breaking, backward-incompatible change.

• A major bug uninitialized memory bug was fixed in RetroArch, making it a lot more stable. Commit

• Thanks to the fix above and great work from @lubosz, Yabuse (a Sega Saturn retroarch core) is now in a working (albeit slow) state.

• @endrift fixed the MacOS builds! It is now possible to use libtransistor on MacOS. The guide was updated, it now has steps for MacOS users. PR

What people are working on

• @Daeken started porting the Linux4Tegra GPU driver.
• @dvdfreitag is finishing up his C++ work. You can check it out there, but keep in mind it doesn’t quite work yet.
• @roblabla’s SwIPC improvements moved along. 300 functions got named (only 1200 functions left to name), and ~200 functions got some documentation ported over from switchbrew. PR

Call for participation

Lots of things could be implemented properly into libtransistor/newlib without much more reverse-engineering. If you’re a developer and want to give a hand, make sure to hop on Discord so we can coordinate work. Also, if you feel like you need mentoring notes on some of those tasks, feel free to ping @roblabla on discord, I can write up what needs to be done, and guide you through the process:

• Documentation work!
  • Enhancing the libtransistor docs. You can take a look at this issue.
  • SwIPC documentation. We need to make it easy for people to know what each function and service does.
• Joystick support in SDL2! If you want to pick this up, look at this issue.
• Thread Local Storage. Check this issue.
• Implementing more services into libtransistor. We’re lacking a bunch of things like USB support and whatnot.
• Port apps and libraries. Make sure they work! We have graphics and audio, the sky is the limit!