refactor: attempt to improve clarity of env var purpose

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
   main:
     runs-on: ubuntu-latest
     env:
-      NATIVE_BUILD: true
+      CANDLEX_NIF_BUILD: true
     strategy:
       fail-fast: false
       matrix:

README.md

@@ -41,7 +41,7 @@ Nx.default_backend(Candlex.Backend)
 
 More details in [Nx backends](https://hexdocs.pm/nx/Nx.html#module-backends)
 
-#### `NATIVE_BUILD`
+#### `CANDLEX_NIF_BUILD`
 
 Defaults to `false`. If `true` the native binary is built locally, which may be useful
 if no precompiled binary is available for your target environment. Once set, you
@@ -50,7 +50,7 @@ Building has a number of dependencies, see *Building from source* below.
 
 ## Building from source
 
-To build the native binary locally you need to set `NATIVE_BUILD=true`.
+To build the native binary locally you need to set `CANDLEX_NIF_BUILD=true`.
 Keep in mind that the compilation usually takes time.
 
 You will need the following installed in your system for the compilation:

lib/candlex/native.ex

@@ -10,7 +10,7 @@ defmodule Candlex.Native do
     otp_app: :candlex,
     features: Application.compile_env(:candlex, :crate_features, []),
     base_url: "#{source_url}/releases/download/v#{version}",
-    force_build: System.get_env("NATIVE_BUILD") in ["1", "true"],
+    force_build: System.get_env("CANDLEX_NIF_BUILD") in ["1", "true"],
     mode: mode,
     version: version,
     nif_versions: ["2.16"],