feat: support freebsd in napi build command

ava.config.cjs

@@ -1,17 +1,13 @@
-import { platform } from 'os'
-
-const platformName = platform()
-
 const configuration = {
   extensions: ['ts', 'tsx'],
   files: ['test_module/__test__/**/*.spec.ts'],
   require: [
-    platformName === 'freebsd'
+    require('os').platform() === 'freebsd'
       ? 'ts-node/register/transpile-only'
       : '@swc-node/register',
   ],
   environmentVariables: {
-    SWC_NODE_PROJECT: './test_module/tsconfig.json',
+    TS_NODE_PROJECT: './test_module/tsconfig.json',
   },
 }
 
@@ -19,4 +15,4 @@ if (parseInt(process.versions.napi, 10) < 4) {
   configuration.compileEnhancements = false
 }
 
-export default configuration
+module.exports = configuration

src/build.ts

@@ -84,6 +84,7 @@ export class BuildCommand extends Command {
         libExt = '.dll'
         break
       case 'linux':
+      case 'freebsd':
         dylibName = `lib${dylibName}`
         libExt = '.so'
         break