init with nix-shell

.envrc

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+use_nix

README.txt

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+# Triav1lity
+
+Sequel to AV1Master, alternative to grav1
+
+Aims to extend and implement grav1's API in addition to improving upon the AV1Master API so that it is compatible with the grav1's webui and grav1c
+
+Uses async rocket and stores state.

shell.nix

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+let
+  moz_overlay = import (builtins.fetchTarball https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz);
+  nixpkgs = import <nixpkgs> { overlays = [ moz_overlay ]; };
+  rustNightlyChannel = (nixpkgs.rustChannelOf { date = "2020-07-12"; channel = "nightly"; }).rust.override {
+    extensions = [
+			"rust-src"
+			"rls-preview"
+			"clippy-preview"
+			"rustfmt-preview"
+		];
+  };
+	rustStableChannel = nixpkgs.latest.rustChannels.stable.rust.override {
+		extensions = [
+			"rust-src"
+			"rls-preview"
+			"clippy-preview"
+			"rustfmt-preview"
+		];
+  };
+in
+with nixpkgs;
+  stdenv.mkDerivation {
+    name = "moz_overlay_shell";
+    buildInputs = [
+      rustNightlyChannel
+    ];
+  }