diff --git a/README.md b/README.md
index 55c3699..279034e 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@ This produces the Vanilla artifacts in build/
 | `--dist` [required]                 | Which distribution type to generate artifacts for. NeoForm defines these and usually `client`, `server` and `joined` are available.                                                                                                                     |
 | `--neoforge=<gav>`                  | Pass the NeoForge artifact to use as `net.neoforged:neoforge:<version>`. When passing this, the NeoForm version is implied. It can still be overridden by passing `--neoform` as well.                                                                  |
 | `--neoform=<gav>`                   | Pass the NeoForm artifact to use as `net.neoforged:neoform:<version>@zip`.                                                                                                                                                                              |
+| `--neoform-file=<path>`             | As an alternative to `--neoform` you can also pass a path to the NeoForm data archive directly.                                                                                                                                                         |
 | `--write-result=<id>:<path>`        | This option can be passed multiple times. It tells NFRT to write a result of the execution graph to the given path, such as the recompiled Minecraft jar-file, or the sources. If you pass no such option, NFRT will print which results are available. |
 | `--access-transformer=<path>`       | Adds access transformers which will be applied to the source before recompiling it.                                                                                                                                                                     |
 | `--interface-injection-data=<path>` | Adds [interface injection data](https://github.com/neoforged/JavaSourceTransformer?tab=readme-ov-file#interface-injection) which will be applied to the source before recompiling it.                                                                   |
diff --git a/src/main/java/net/neoforged/neoform/runtime/cli/Main.java b/src/main/java/net/neoforged/neoform/runtime/cli/Main.java
index d9806d9..d2f42d8 100644
--- a/src/main/java/net/neoforged/neoform/runtime/cli/Main.java
+++ b/src/main/java/net/neoforged/neoform/runtime/cli/Main.java
@@ -21,7 +21,7 @@
 import static picocli.CommandLine.Option;
 import static picocli.CommandLine.ScopeType;
 
-@Command(name = "neoform-runtime", subcommands = {RunNeoFormCommand.class, DownloadAssetsCommand.class, CleanCacheCommand.class, CacheMaintenance.class}, mixinStandardHelpOptions = true)
+@Command(name = "neoform-runtime", subcommands = {CommandLine.HelpCommand.class, RunNeoFormCommand.class, DownloadAssetsCommand.class, CleanCacheCommand.class, CacheMaintenance.class}, mixinStandardHelpOptions = true)
 public class Main {
     @Option(names = "--home-dir", scope = ScopeType.INHERIT, description = "Where NFRT should store caches.")
     Path homeDir = getDefaultHomeDir();
diff --git a/src/main/java/net/neoforged/neoform/runtime/cli/RunNeoFormCommand.java b/src/main/java/net/neoforged/neoform/runtime/cli/RunNeoFormCommand.java
index 043bd60..1082265 100644
--- a/src/main/java/net/neoforged/neoform/runtime/cli/RunNeoFormCommand.java
+++ b/src/main/java/net/neoforged/neoform/runtime/cli/RunNeoFormCommand.java
@@ -69,12 +69,19 @@ public class RunNeoFormCommand extends NeoFormEngineCommand {
     String parchmentConflictPrefix;
 
     static class SourceArtifacts {
-        @CommandLine.Option(names = "--neoform")
-        String neoform;
+        @CommandLine.ArgGroup(multiplicity = "1")
+        NeoFormArtifact neoform;
         @CommandLine.Option(names = "--neoforge")
         String neoforge;
     }
 
+    static class NeoFormArtifact {
+        @CommandLine.Option(names = "--neoform")
+        String artifact;
+        @CommandLine.Option(names = "--neoform-file")
+        Path file;
+    }
+
     @Override
     protected void runWithNeoFormEngine(NeoFormEngine engine, List<AutoCloseable> closables) throws IOException, InterruptedException {
         var artifactManager = engine.getArtifactManager();
@@ -83,11 +90,17 @@ protected void runWithNeoFormEngine(NeoFormEngine engine, List<AutoCloseable> cl
             var neoforgeArtifact = artifactManager.get(sourceArtifacts.neoforge);
             var neoforgeZipFile = engine.addManagedResource(new JarFile(neoforgeArtifact.path().toFile()));
             var neoforgeConfig = NeoForgeConfig.from(neoforgeZipFile);
-            var neoformArtifact = MavenCoordinate.parse(neoforgeConfig.neoformArtifact());
-            // Allow it to be overridden
-            if (sourceArtifacts.neoform != null) {
-                LOG.println("Overriding NeoForm version " + neoformArtifact + " with CLI argument " + sourceArtifacts.neoform);
-                neoformArtifact = MavenCoordinate.parse(sourceArtifacts.neoform);
+
+            // Allow it to be overridden with local or remote data
+            Path neoformArtifact;
+            if (sourceArtifacts.neoform.file != null) {
+                LOG.println("Overriding NeoForm version " + neoforgeConfig.neoformArtifact() + " with NeoForm file " + sourceArtifacts.neoform.file);
+                neoformArtifact = sourceArtifacts.neoform.file;
+            } else if (sourceArtifacts.neoform.artifact != null) {
+                LOG.println("Overriding NeoForm version " + neoforgeConfig.neoformArtifact() + " with CLI argument " + sourceArtifacts.neoform.artifact);
+                neoformArtifact = artifactManager.get(MavenCoordinate.parse(sourceArtifacts.neoform.artifact)).path();
+            } else {
+                neoformArtifact = artifactManager.get(MavenCoordinate.parse(neoforgeConfig.neoformArtifact())).path();
             }
 
             engine.loadNeoFormData(neoformArtifact, dist);
@@ -168,7 +181,14 @@ protected void runWithNeoFormEngine(NeoFormEngine engine, List<AutoCloseable> cl
 
             createSourcesAndCompiledWithNeoForge(engine.getGraph(), compiledWithNeoForgeOutput, sourcesWithNeoForgeOutput);
         } else {
-            engine.loadNeoFormData(MavenCoordinate.parse(sourceArtifacts.neoform), dist);
+            Path neoFormDataPath;
+            if (sourceArtifacts.neoform.file != null) {
+                neoFormDataPath = sourceArtifacts.neoform.file;
+            } else {
+                neoFormDataPath = artifactManager.get(MavenCoordinate.parse(sourceArtifacts.neoform.artifact)).path();
+            }
+
+            engine.loadNeoFormData(neoFormDataPath, dist);
         }
 
         if (!additionalAccessTransformers.isEmpty()) {
diff --git a/src/main/java/net/neoforged/neoform/runtime/engine/NeoFormEngine.java b/src/main/java/net/neoforged/neoform/runtime/engine/NeoFormEngine.java
index eed280f..b54d085 100644
--- a/src/main/java/net/neoforged/neoform/runtime/engine/NeoFormEngine.java
+++ b/src/main/java/net/neoforged/neoform/runtime/engine/NeoFormEngine.java
@@ -153,9 +153,8 @@ public void addDataSource(String id, ZipFile zipFile, String sourceFolder) {
         dataSources.put(id, new DataSource(zipFile, sourceFolder));
     }
 
-    public void loadNeoFormData(MavenCoordinate neoFormArtifactId, String dist) throws IOException {
-        var neoFormArchive = artifactManager.get(Objects.requireNonNull(neoFormArtifactId, "neoFormArtifactId"));
-        var zipFile = new ZipFile(neoFormArchive.path().toFile());
+    public void loadNeoFormData(Path neoFormDataPath, String dist) throws IOException {
+        var zipFile = new ZipFile(neoFormDataPath.toFile());
         var config = NeoFormConfig.from(zipFile);
         var distConfig = config.getDistConfig(dist);