diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 58fc176..ebb7d43 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -17,9 +17,9 @@ jobs:
       - name: cache
         uses: Swatinem/rust-cache@v2
       - name: Cargo build
-        run: cargo build --locked
+        run: cargo build --locked --no-default-features # I don't want to download an ortruntime so
       - name: Cargo test
-        run: cargo test --locked
+        run: cargo test --locked --no-default-features
       - name: Rustfmt
         run: cargo fmt --check
       - name: Clippy
diff --git a/Cargo.toml b/Cargo.toml
index 1d05fc4..614ff5e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [features]
+default = ["ort/load-dynamic"]
 
 [dependencies]
 anyhow = "1.0.65"
@@ -22,7 +23,7 @@ ndarray = "0.15.6"
 ndarray-npy = "0.8.1" # Just for convenient moving to/from python for checking
 num2words = "1.0.1"
 once_cell = "1.15.0"
-ort = { version = "2.0.0-rc.0", features = ["load-dynamic"] }
+ort = { version = "2.0.0-rc.0" }
 regex = "1.6.0"
 serde =  { version = "1.0.192", features = ["derive"] }
 serde_json = "1.0.108"
diff --git a/src/bin/app.rs b/src/bin/app.rs
index 6bf07c0..14a2ce6 100644
--- a/src/bin/app.rs
+++ b/src/bin/app.rs
@@ -1,14 +1,7 @@
 use clap::Parser;
-use griffin_lim::GriffinLim;
-use hound::{SampleFormat, WavSpec, WavWriter};
-use std::fs::File;
-use std::io::BufWriter;
-use std::path::{Path, PathBuf};
-use std::time::{Duration, Instant};
-use tracing::{debug, error, info};
-use xd_tts::phonemes::Unit;
-use xd_tts::tacotron2::*;
-use xd_tts::text_normaliser::{self, NormaliserChunk};
+use hound::WavWriter;
+use std::path::PathBuf;
+use tracing::info;
 use xd_tts::*;
 
 #[derive(Parser, Debug)]
@@ -30,17 +23,6 @@ pub struct Args {
     tacotron2: PathBuf,
 }
 
-fn create_wav_writer(output: &Path) -> anyhow::Result<WavWriter<BufWriter<File>>> {
-    let spec = WavSpec {
-        channels: 1,
-        sample_rate: 22050,
-        bits_per_sample: 16,
-        sample_format: SampleFormat::Int,
-    };
-
-    let w = WavWriter::create(output, spec)?;
-    Ok(w)
-}
 
 fn main() -> anyhow::Result<()> {
     xd_tts::setup_logging();
@@ -49,7 +31,7 @@ fn main() -> anyhow::Result<()> {
     info!("Loading resources");
 
     let tts_context = XdTts::new(&args.tacotron2, args.phoneme_input)?;
-    let mut wav_writer = create_wav_writer(&args.output)?;
+    let mut wav_writer  = WavWriter::create(&args.output, xd_tts::WAV_SPEC)?;
 
     tts_context.generate_audio(&args.input, &mut wav_writer, args.output_spectrogram)?;
     Ok(())
diff --git a/src/lib.rs b/src/lib.rs
index a3b49b3..2488f6d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -22,7 +22,7 @@ pub mod training;
 
 pub use cmu_dict::CmuDictionary;
 
-pub const wav_spec: WavSpec = WavSpec {
+pub const WAV_SPEC: WavSpec = WavSpec {
     channels: 1,
     sample_rate: 22050,
     bits_per_sample: 16,