diff --git a/src/bin/lockin-internal-demo.rs b/src/bin/lockin-internal-demo.rs
index e36c676..969f332 100644
--- a/src/bin/lockin-internal-demo.rs
+++ b/src/bin/lockin-internal-demo.rs
@@ -3,37 +3,22 @@
 #![no_main]
 #![cfg_attr(feature = "nightly", feature(core_intrinsics))]
 
-use stm32h7xx_hal as hal;
-
-#[macro_use]
-extern crate log;
-
-use rtic::cyccnt::{Instant, U32Ext};
-
-use heapless::{consts::*, String};
-
 // A constant sinusoid to send on the DAC output.
 const DAC_SEQUENCE: [f32; 8] =
     [0.0, 0.707, 1.0, 0.707, 0.0, -0.707, -1.0, -0.707];
 
-use dsp::{iir, iir_int, lockin::Lockin, reciprocal_pll::TimestampHandler};
+use dsp::{iir, iir_int, lockin::Lockin};
 use hardware::{Adc1Input, Dac0Output, Dac1Output, AFE0, AFE1};
-use stabilizer::{
-    hardware, server, ADC_SAMPLE_TICKS_LOG2, SAMPLE_BUFFER_SIZE_LOG2,
-};
+use stabilizer::hardware;
 
 const SCALE: f32 = ((1 << 15) - 1) as f32;
 
-const TCP_RX_BUFFER_SIZE: usize = 8192;
-const TCP_TX_BUFFER_SIZE: usize = 8192;
-
 #[rtic::app(device = stm32h7xx_hal::stm32, peripherals = true, monotonic = rtic::cyccnt::CYCCNT)]
 const APP: () = {
     struct Resources {
         afes: (AFE0, AFE1),
         adc1: Adc1Input,
         dacs: (Dac0Output, Dac1Output),
-        net_interface: hardware::Ethernet,
 
         #[init([0.; 5])]
         iir_state: iir::IIRState,
@@ -63,11 +48,9 @@ const APP: () = {
 
         init::LateResources {
             lockin,
-            pll,
             afes: stabilizer.afes,
             adc1: stabilizer.adcs.1,
             dacs: stabilizer.dacs,
-            net_interface: stabilizer.net.interface,
         }
     }
 
@@ -89,7 +72,7 @@ const APP: () = {
     /// the same time bounds, meeting one also means the other is also met.
     ///
     /// TODO: Document
-    #[task(binds=DMA1_STR4, resources=[adc1, dacs, iir_state, iir, lockin, pll], priority=2)]
+    #[task(binds=DMA1_STR4, resources=[adc1, dacs, iir_state, iir, lockin], priority=2)]
     fn process(mut c: process::Context) {
         let adc_samples = c.resources.adc1.acquire_buffer();
         let dac_samples = [
@@ -144,117 +127,17 @@ const APP: () = {
         }
     }
 
-    #[idle(resources=[net_interface, iir_state, iir, afes])]
-    fn idle(mut c: idle::Context) -> ! {
-        let mut socket_set_entries: [_; 8] = Default::default();
-        let mut sockets =
-            smoltcp::socket::SocketSet::new(&mut socket_set_entries[..]);
-
-        let mut rx_storage = [0; TCP_RX_BUFFER_SIZE];
-        let mut tx_storage = [0; TCP_TX_BUFFER_SIZE];
-        let tcp_handle = {
-            let tcp_rx_buffer =
-                smoltcp::socket::TcpSocketBuffer::new(&mut rx_storage[..]);
-            let tcp_tx_buffer =
-                smoltcp::socket::TcpSocketBuffer::new(&mut tx_storage[..]);
-            let tcp_socket =
-                smoltcp::socket::TcpSocket::new(tcp_rx_buffer, tcp_tx_buffer);
-            sockets.add(tcp_socket)
-        };
-
-        let mut server = server::Server::new();
-
-        let mut time = 0u32;
-        let mut next_ms = Instant::now();
-
-        // TODO: Replace with reference to CPU clock from CCDR.
-        next_ms += 400_000.cycles();
-
+    #[idle(resources=[iir_state, iir, afes])]
+    fn idle(_: idle::Context) -> ! {
         loop {
-            let tick = Instant::now() > next_ms;
-
-            if tick {
-                next_ms += 400_000.cycles();
-                time += 1;
-            }
-
-            {
-                let socket =
-                    &mut *sockets.get::<smoltcp::socket::TcpSocket>(tcp_handle);
-                if socket.state() == smoltcp::socket::TcpState::CloseWait {
-                    socket.close();
-                } else if !(socket.is_open() || socket.is_listening()) {
-                    socket
-                        .listen(1235)
-                        .unwrap_or_else(|e| warn!("TCP listen error: {:?}", e));
-                } else {
-                    server.poll(socket, |req| {
-                        info!("Got request: {:?}", req);
-                        stabilizer::route_request!(req,
-                            readable_attributes: [
-                                "stabilizer/iir/state": (|| {
-                                    let state = c.resources.iir_state.lock(|iir_state|
-                                        server::Status {
-                                            t: time,
-                                            x0: iir_state[0],
-                                            y0: iir_state[2],
-                                            x1: iir_state[0],
-                                            y1: iir_state[2],
-                                    });
-
-                                    Ok::<server::Status, ()>(state)
-                                }),
-                                "stabilizer/afe0/gain": (|| c.resources.afes.0.get_gain()),
-                                "stabilizer/afe1/gain": (|| c.resources.afes.1.get_gain())
-                            ],
-
-                            modifiable_attributes: [
-                                "stabilizer/iir/state": server::IirRequest, (|req: server::IirRequest| {
-                                    c.resources.iir.lock(|iir| {
-                                        if req.channel >= 1 {
-                                            return Err(());
-                                        }
-
-                                        *iir = req.iir;
-
-                                        Ok::<server::IirRequest, ()>(req)
-                                    })
-                                }),
-                                "stabilizer/afe0/gain": hardware::AfeGain, (|gain| {
-                                    c.resources.afes.0.set_gain(gain);
-                                    Ok::<(), ()>(())
-                                }),
-                                "stabilizer/afe1/gain": hardware::AfeGain, (|gain| {
-                                    c.resources.afes.1.set_gain(gain);
-                                    Ok::<(), ()>(())
-                                })
-                            ]
-                        )
-                    });
-                }
-            }
-
-            let sleep = match c.resources.net_interface.poll(
-                &mut sockets,
-                smoltcp::time::Instant::from_millis(time as i64),
-            ) {
-                Ok(changed) => !changed,
-                Err(smoltcp::Error::Unrecognized) => true,
-                Err(e) => {
-                    info!("iface poll error: {:?}", e);
-                    true
-                }
-            };
-
-            if sleep {
-                cortex_m::asm::wfi();
-            }
+            // TODO: Implement network interface.
+            cortex_m::asm::wfi();
         }
     }
 
     #[task(binds = ETH, priority = 1)]
     fn eth(_: eth::Context) {
-        unsafe { hal::ethernet::interrupt_handler() }
+        unsafe { stm32h7xx_hal::ethernet::interrupt_handler() }
     }
 
     #[task(binds = SPI2, priority = 3)]