Migrate to Rust and Hyper

With sanic, downloading a file locally is around ten times slower than
with Rust and hyper.

Maybe `pypy` could have helped, but I didn’t succeed to set it up
quickly with the dependencies.

1 files changed, 29 insertions, 22 deletions

diff --git a/flake.nix b/flake.nix
index 170fe8d..fe059df 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,28 +1,35 @@
 {
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs";
-    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url      = "github:nixos/nixpkgs";
+    flake-utils.url  = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem
-      (system:
-        let pkgs = nixpkgs.legacyPackages.${system};
-        in { devShell = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            (pkgs.python3.withPackages (pythonPackages: with pythonPackages; [
-              sqlite
-              watchexec
-              sanic
-              setuptools
-            ]))
+  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+      in
+      with pkgs;
+      {
+        devShell = mkShell {
+          buildInputs = [
+            cargo-watch
+            lld
+            openssl
+            pkg-config
+            rust-bin.stable."1.78.0".default
+            sqlite
+            watchexec
           ];
-          shellHook = ''
-            export DEBUG="TRUE"
-            export HOST="127.0.0.1"
-            export PORT="8080"
-            export KEY="1234"
-          '';
-        }; }
-      );
+        };
+      }
+    );
 }
+