Do npm install in build

.travis.yml

@@ -8,10 +8,7 @@ install:
     tar zxf $HOME/sbt.tgz -C $HOME
     sudo rm /usr/local/bin/sbt
     sudo ln -s $HOME/sbt/bin/sbt /usr/local/bin/sbt
-script: 
-  - cd backends/.js
-  - npm install
-  - cd ../..
+script:  
 #  - bash get_models.sh
   - travis_wait 5 sbt test -J-Xmx5G
 #  - sbt docsJVM/mdoc

build.sbt

@@ -115,7 +115,7 @@ lazy val backends = (crossProject(JSPlatform, JVMPlatform)
         // use Path.rebase to pair source files with target destination in crossTarget
         val pairs = htmlFiles pair rebase(
           src,
-          (Compile / target).value / "scala-3.5.1-RC2/scalajs-bundler/main/node_modules/onnxruntime-node/dist/types.d.ts"
+          (Compile / target).value / "../backends/.js/node_modules/onnxruntime-node/dist/types.d.ts"
         )
 
         // Copy files to source files to target
@@ -158,6 +158,7 @@ lazy val backends = (crossProject(JSPlatform, JVMPlatform)
        _.withESVersion(org.scalajs.linker.interface.ESVersion.ES2021)
      )),
     externalNpm := {
+      Process("npm install", baseDirectory.value).!
       Process("npm run", baseDirectory.value).!
       baseDirectory.value
     }