diff --git a/Sources/Fault/Entries/atpg.swift b/Sources/Fault/Entries/atpg.swift
index 39d83da..4553c2e 100644
--- a/Sources/Fault/Entries/atpg.swift
+++ b/Sources/Fault/Entries/atpg.swift
@@ -94,9 +94,18 @@ extension Fault {
 
     @Option(
       name: [.short, .long],
-      help: "Netlist in bench format. (Required iff generator is set to Atalanta or PODEM.)")
+      help:
+        "Netlist in bench format. (Required if generator is set to Atalanta or PODEM and a liberty file is not passed.)"
+    )
     var bench: String?
 
+    @Option(
+      name: [.customShort("l"), .long],
+      help:
+        "Liberty file. (Required if generator is set to Atalanta or PODEM and a bench file is not passed.)"
+    )
+    var liberty: String?
+
     @Flag(help: "Generate only one testbench for inspection, and do not delete it.")
     var sampleRun: Bool = false
 
@@ -182,8 +191,28 @@ extension Fault {
           Stderr.print("Unknown external test vector generator '\(tvGenerator)'.")
           Foundation.exit(EX_USAGE)
         }
+        if bench == nil && liberty == nil {
+          Stderr.print(
+            "Either --bench or --liberty must be passed when using an external test vector generator."
+          )
+          Foundation.exit(EX_USAGE)
+        }
 
-        let benchUnwrapped = bench!  // Program exits if etvGen.value isn't nil and bench.value is or vice versa
+        let benchUnwrapped =
+          bench
+          ?? ({
+            let nl2bench = Python.import("nl2bench")
+            let pyPath = Python.import("pathlib").Path
+            let benchPath = file.replacingExtension(".v", with: ".bench")
+            let benchPathF = Python.open(benchPath, "w", encoding: "utf8")
+            nl2bench.nl2bench.verilog_netlist_to_bench(
+              pyPath(file),
+              [
+                liberty!
+              ],
+              benchPathF, Array(bypass.bypassedIOs))
+            return benchPath
+          })()
 
         if !fileManager.fileExists(atPath: benchUnwrapped) {
           throw ValidationError("Bench file '\(benchUnwrapped)' not found.")
diff --git a/Sources/Fault/Entries/main.swift b/Sources/Fault/Entries/main.swift
index 435d81d..eba2b5c 100644
--- a/Sources/Fault/Entries/main.swift
+++ b/Sources/Fault/Entries/main.swift
@@ -21,7 +21,7 @@ import Foundation
 import PythonKit
 import Yams
 
-let VERSION = "0.9.0"
+let VERSION = "0.10.0"
 
 var env = ProcessInfo.processInfo.environment
 let iverilogBase = env["FAULT_IVL_BASE"] ?? "/usr/local/lib/ivl"
diff --git a/flake.lock b/flake.lock
index 9d57cda..e65215a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -86,11 +86,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1728905391,
-        "narHash": "sha256-iox9yGNG4MwSKhQuwegLcDW6wVGzfdBPrh8SrhSLA8c=",
+        "lastModified": 1729690989,
+        "narHash": "sha256-vH6nNmYWX5IV8+C1eorCjA/8YyYhNlKnPCruaiTlW6U=",
         "owner": "efabless",
         "repo": "nix-eda",
-        "rev": "0814aa6c1c7d556aa08212cc875063cff62cb9b0",
+        "rev": "c54cac502fc8e828244063a0e0fd1dfbf706cb00",
         "type": "github"
       },
       "original": {
@@ -126,11 +126,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1729429745,
-        "narHash": "sha256-dQgCxAcoEv1NTqSRpNGEE4NhNufc76Cyc3HDInqL2+0=",
+        "lastModified": 1730551568,
+        "narHash": "sha256-OjlXcUPxtBxVjfJ6geZk0mRM34ZyAwvSyV+VaJ2J4Ic=",
         "owner": "donn",
         "repo": "nl2bench",
-        "rev": "23d4e0954d56ec15a12bb27064501e93566ee8e7",
+        "rev": "1654bab0c720a84eab7e662fcee494f502c30bc3",
         "type": "github"
       },
       "original": {
@@ -148,11 +148,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1722162293,
-        "narHash": "sha256-WILtL6WKXs5pB5Jujx9HIT2w1jiVTZymXC7DTuqLPEM=",
+        "lastModified": 1729433159,
+        "narHash": "sha256-/zUDNezyZaV7tGIXK9LcdWH5xGHI5CRKALh0vNDf6HE=",
         "owner": "coloquinte",
         "repo": "quaigh",
-        "rev": "2fec998178d4e48c5379dd0a2025f8688797f99a",
+        "rev": "c9a17d28bfb3ff73315262d4f2b345e8877b395a",
         "type": "github"
       },
       "original": {