Add experimental flake (#2384)

Add flake.nix

flake.lock

+{
+  "nodes": {
+    "flake-compat": {
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1723099294,
+        "narHash": "sha256-kkijy6sXo/SOhFw7ZEfYHbj1FJHxoeetOVOn3qNHc5o=",
+        "owner": "danieldk",
+        "repo": "nixpkgs",
+        "rev": "45892b6ec142eaf300d777926983a433b5842c88",
+        "type": "github"
+      },
+      "original": {
+        "owner": "danieldk",
+        "ref": "cudnn-9.3",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "tgi-nix",
+          "nixpkgs"
+        ],
+        "tgi-nix": "tgi-nix"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "tgi-nix": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1723188417,
+        "narHash": "sha256-GXdFuRMU9N9W0CryUTJIWhJkGwQFHSR2EW5xR0ZyBjk=",
+        "owner": "danieldk",
+        "repo": "tgi-nix",
+        "rev": "491db7e234ecf79513ddb94da6ecc14167b9c0b3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "danieldk",
+        "repo": "tgi-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

+{
+  inputs = {
+    tgi-nix.url = "github:danieldk/tgi-nix";
+    nixpkgs.follows = "tgi-nix/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+  outputs =
+    {
+      self,
+      nixpkgs,
+      flake-utils,
+      tgi-nix,
+    }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        config = {
+          allowUnfree = true;
+          cudaSupport = true;
+        };
+        pkgs = import nixpkgs {
+          inherit config system;
+          overlays = [ tgi-nix.overlay ];
+        };
+      in
+      {
+        devShells.default =
+          with pkgs;
+          mkShell {
+            buildInputs =
+              [
+                cargo
+                openssl.dev
+                pkg-config
+              ]
+              ++ (with python3.pkgs; [
+                venvShellHook
+                pip
+
+                einops
+                fbgemm-gpu
+                flash-attn
+                flash-attn-layer-norm
+                flash-attn-rotary
+                grpc-interceptor
+                grpcio-reflection
+                grpcio-status
+                hf-transfer
+                loguru
+                marlin-kernels
+                opentelemetry-api
+                opentelemetry-exporter-otlp
+                opentelemetry-instrumentation-grpc
+                opentelemetry-semantic-conventions
+                peft
+                tokenizers
+                torch
+                transformers
+                vllm
+              ]);
+
+            venvDir = "./.venv";
+
+            postVenv = ''
+              unset SOURCE_DATE_EPOCH
+            '';
+            postShellHook = ''
+              unset SOURCE_DATE_EPOCH
+            '';
+          };
+      }
+    );
+}