diff --git a/Cargo.lock b/Cargo.lock
index 0999288..b0cb459 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -199,9 +199,8 @@ dependencies = [
 ]
 
 [[package]]
-name = "derive_stringset"
+name = "derive_miniconf"
 version = "0.1.0"
-source = "git+https://github.com/quartiq/miniconf.git?branch=develop#97ace3d8268075235cb67a2a8740d200bea1fe30"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -402,9 +401,8 @@ dependencies = [
 [[package]]
 name = "miniconf"
 version = "0.1.0"
-source = "git+https://github.com/quartiq/miniconf.git?branch=develop#97ace3d8268075235cb67a2a8740d200bea1fe30"
 dependencies = [
- "derive_stringset",
+ "derive_miniconf",
  "heapless",
  "minimq",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index f384fe9..4160253 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,8 +49,7 @@ miniconf = "0.1"
 generic-array = "0.14"
 
 [patch.crates-io.miniconf]
-git = "https://github.com/quartiq/miniconf.git"
-branch = "develop"
+path = "../miniconf/"
 
 [patch.crates-io.serde-json-core]
 git = "https://github.com/rust-embedded-community/serde-json-core.git"
diff --git a/dsp/src/iir.rs b/dsp/src/iir.rs
index d323a6c..ee9639e 100644
--- a/dsp/src/iir.rs
+++ b/dsp/src/iir.rs
@@ -1,4 +1,4 @@
-use miniconf::StringSet;
+use miniconf::MiniconfAtomic;
 use serde::Deserialize;
 
 use super::{abs, copysign, macc, max, min};
@@ -39,7 +39,7 @@ pub type Vec5 = [f32; 5];
 ///   Therefore it can trivially implement bump-less transfer.
 /// * Cascading multiple IIR filters allows stable and robust
 ///   implementation of transfer functions beyond bequadratic terms.
-#[derive(Copy, Clone, Debug, Default, Deserialize, StringSet)]
+#[derive(Copy, Clone, Debug, Default, Deserialize, MiniconfAtomic)]
 pub struct IIR {
     pub ba: Vec5,
     pub y_offset: f32,
diff --git a/dsp/src/iir_int.rs b/dsp/src/iir_int.rs
index ef0c1dc..5ac75f5 100644
--- a/dsp/src/iir_int.rs
+++ b/dsp/src/iir_int.rs
@@ -1,6 +1,6 @@
 use super::tools::macc_i32;
 use core::f64::consts::PI;
-use miniconf::StringSet;
+use miniconf::MiniconfAtomic;
 use serde::Deserialize;
 
 /// Generic vector for integer IIR filter.
@@ -46,7 +46,7 @@ impl Coeff for Vec5 {
 /// See `dsp::iir::IIR` for general implementation details.
 /// Offset and limiting disabled to suit lowpass applications.
 /// Coefficient scaling fixed and optimized.
-#[derive(Copy, Clone, Default, Debug, StringSet, Deserialize)]
+#[derive(Copy, Clone, Default, Debug, MiniconfAtomic, Deserialize)]
 pub struct IIR {
     pub ba: Vec5,
     // pub y_offset: i32,
diff --git a/src/bin/dual-iir.rs b/src/bin/dual-iir.rs
index a2279d8..9b6b24f 100644
--- a/src/bin/dual-iir.rs
+++ b/src/bin/dual-iir.rs
@@ -8,7 +8,7 @@ use stabilizer::hardware;
 
 use miniconf::{
     embedded_nal::{IpAddr, Ipv4Addr},
-    minimq, MqttInterface, StringSet,
+    minimq, Miniconf, MqttInterface,
 };
 use serde::Deserialize;
 
@@ -23,7 +23,7 @@ const SCALE: f32 = i16::MAX as _;
 // The number of cascaded IIR biquads per channel. Select 1 or 2!
 const IIR_CASCADE_LENGTH: usize = 1;
 
-#[derive(Debug, Deserialize, StringSet)]
+#[derive(Debug, Deserialize, Miniconf)]
 pub struct Settings {
     afe: [AfeGain; 2],
     iir_ch: [[iir::IIR; IIR_CASCADE_LENGTH]; 2],
@@ -143,23 +143,15 @@ const APP: () = {
         let clock = c.resources.clock;
 
         loop {
-            let sleep = c.resources.mqtt_interface.lock(|interface| {
+            let _sleep = c.resources.mqtt_interface.lock(|interface| {
                 !interface.network_stack().poll(clock.current_ms())
             });
 
-            match c
-                .resources
+            if c.resources
                 .mqtt_interface
                 .lock(|interface| interface.update().unwrap())
             {
-                miniconf::Action::Continue => {
-                    if sleep {
-                        cortex_m::asm::wfi();
-                    }
-                }
-                miniconf::Action::CommitSettings => {
-                    c.spawn.settings_update().unwrap()
-                }
+                c.spawn.settings_update().unwrap()
             }
         }
     }
diff --git a/src/hardware/afe.rs b/src/hardware/afe.rs
index 8ce1bd1..9e3674b 100644
--- a/src/hardware/afe.rs
+++ b/src/hardware/afe.rs
@@ -1,11 +1,11 @@
-use miniconf::StringSet;
+use miniconf::Miniconf;
 use serde::{Deserialize, Serialize};
 
 use core::convert::TryFrom;
 use enum_iterator::IntoEnumIterator;
 
 #[derive(
-    Copy, Clone, Debug, Serialize, Deserialize, IntoEnumIterator, StringSet,
+    Copy, Clone, Debug, Serialize, Deserialize, IntoEnumIterator, Miniconf,
 )]
 pub enum Gain {
     G1 = 0b00,