diff --git a/docs/peripheral.md b/docs/peripheral.md
index f0ae48a..e028d6f 100644
--- a/docs/peripheral.md
+++ b/docs/peripheral.md
@@ -262,16 +262,6 @@ The `::picolibrary::Microchip::megaAVR0::Peripheral::WDT` class is defined in th
 header/source file pair.
 
 ## Peripheral Instances
-The `::picolibrary::Microchip::megaAVR0::Peripheral::Instance` template class is used to
-define Microchip megaAVR 0-series peripheral instances.
-The `::picolibrary::Microchip::megaAVR0::Peripheral::Instance` template class is defined
-in the
-[`include/picolibrary/microchip/megaavr0/peripheral/instance.h`](https://github.com/apcountryman/picolibrary-microchip-megaavr0/blob/main/include/picolibrary/microchip/megaavr0/peripheral/instance.h)/[`source/picolibrary/microchip/megaavr0/peripheral/instance.cc`](https://github.com/apcountryman/picolibrary-microchip-megaavr0/blob/main/source/picolibrary/microchip/megaavr0/peripheral/instance.cc)
-header/source file pair.
-- To access a peripheral instance, use the
-  `::picolibrary::Microchip::megaAVR0::Peripheral::Instance::instance()` static member
-  function.
-
 Microchip megaAVR 0-series peripheral instances are defined in the
 [`include/picolibrary/microchip/megaavr0/peripheral.h`](https://github.com/apcountryman/picolibrary-microchip-megaavr0/blob/main/include/picolibrary/microchip/megaavr0/peripheral.h)/[`source/picolibrary/microchip/megaavr0/peripheral.cc`](https://github.com/apcountryman/picolibrary-microchip-megaavr0/blob/main/source/picolibrary/microchip/megaavr0/peripheral.cc)
 header/source file pair.
diff --git a/include/picolibrary/microchip/megaavr0/peripheral.h b/include/picolibrary/microchip/megaavr0/peripheral.h
index d73fb24..2781387 100644
--- a/include/picolibrary/microchip/megaavr0/peripheral.h
+++ b/include/picolibrary/microchip/megaavr0/peripheral.h
@@ -32,7 +32,6 @@
 #include "picolibrary/microchip/megaavr0/peripheral/crcscan.h"
 #include "picolibrary/microchip/megaavr0/peripheral/evsys.h"
 #include "picolibrary/microchip/megaavr0/peripheral/fuse.h"
-#include "picolibrary/microchip/megaavr0/peripheral/instance.h"
 #include "picolibrary/microchip/megaavr0/peripheral/nvmctrl.h"
 #include "picolibrary/microchip/megaavr0/peripheral/port.h"
 #include "picolibrary/microchip/megaavr0/peripheral/portmux.h"
@@ -50,6 +49,7 @@
 #include "picolibrary/microchip/megaavr0/peripheral/vport.h"
 #include "picolibrary/microchip/megaavr0/peripheral/vref.h"
 #include "picolibrary/microchip/megaavr0/peripheral/wdt.h"
+#include "picolibrary/peripheral.h"
 
 /**
  * \brief Microchip megaAVR 0-series peripheral facilities.
@@ -59,230 +59,230 @@ namespace picolibrary::Microchip::megaAVR0::Peripheral {
 /**
  * \brief VPORTA.
  */
-using VPORTA = Instance<VPORT, 0x0000>;
+using VPORTA = ::picolibrary::Peripheral::Instance<VPORT, 0x0000>;
 
 #if defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) \
     || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 /**
  * \brief VPORTB.
  */
-using VPORTB = Instance<VPORT, 0x0004>;
+using VPORTB = ::picolibrary::Peripheral::Instance<VPORT, 0x0004>;
 #endif // defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 
 /**
  * \brief VPORTC.
  */
-using VPORTC = Instance<VPORT, 0x0008>;
+using VPORTC = ::picolibrary::Peripheral::Instance<VPORT, 0x0008>;
 
 /**
  * \brief VPORTD.
  */
-using VPORTD = Instance<VPORT, 0x000C>;
+using VPORTD = ::picolibrary::Peripheral::Instance<VPORT, 0x000C>;
 
 #if defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) \
     || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 /**
  * \brief VPORTE.
  */
-using VPORTE = Instance<VPORT, 0x0010>;
+using VPORTE = ::picolibrary::Peripheral::Instance<VPORT, 0x0010>;
 #endif // defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 
 /**
  * \brief VPORTF.
  */
-using VPORTF = Instance<VPORT, 0x0014>;
+using VPORTF = ::picolibrary::Peripheral::Instance<VPORT, 0x0014>;
 
 /**
  * \brief RSTCTRL0.
  */
-using RSTCTRL0 = Instance<RSTCTRL, 0x0040>;
+using RSTCTRL0 = ::picolibrary::Peripheral::Instance<RSTCTRL, 0x0040>;
 
 /**
  * \brief SLPCTRL0.
  */
-using SLPCTRL0 = Instance<SLPCTRL, 0x0050>;
+using SLPCTRL0 = ::picolibrary::Peripheral::Instance<SLPCTRL, 0x0050>;
 
 /**
  * \brief CLKCTRL0.
  */
-using CLKCTRL0 = Instance<CLKCTRL, 0x0060>;
+using CLKCTRL0 = ::picolibrary::Peripheral::Instance<CLKCTRL, 0x0060>;
 
 /**
  * \brief BOD0.
  */
-using BOD0 = Instance<BOD, 0x0080>;
+using BOD0 = ::picolibrary::Peripheral::Instance<BOD, 0x0080>;
 
 /**
  * \brief VREF0.
  */
-using VREF0 = Instance<VREF, 0x00A0>;
+using VREF0 = ::picolibrary::Peripheral::Instance<VREF, 0x00A0>;
 
 /**
  * \brief WDT0.
  */
-using WDT0 = Instance<WDT, 0x0100>;
+using WDT0 = ::picolibrary::Peripheral::Instance<WDT, 0x0100>;
 
 /**
  * \brief CPUINT0.
  */
-using CPUINT0 = Instance<CPUINT, 0x0110>;
+using CPUINT0 = ::picolibrary::Peripheral::Instance<CPUINT, 0x0110>;
 
 /**
  * \brief CRCSCAN0.
  */
-using CRCSCAN0 = Instance<CRCSCAN, 0x0120>;
+using CRCSCAN0 = ::picolibrary::Peripheral::Instance<CRCSCAN, 0x0120>;
 
 /**
  * \brief RTC0.
  */
-using RTC0 = Instance<RTC, 0x0140>;
+using RTC0 = ::picolibrary::Peripheral::Instance<RTC, 0x0140>;
 
 /**
  * \brief EVSYS0.
  */
-using EVSYS0 = Instance<EVSYS, 0x0180>;
+using EVSYS0 = ::picolibrary::Peripheral::Instance<EVSYS, 0x0180>;
 
 /**
  * \brief CCL0.
  */
-using CCL0 = Instance<CCL, 0x01C0>;
+using CCL0 = ::picolibrary::Peripheral::Instance<CCL, 0x01C0>;
 
 /**
  * \brief PORTA.
  */
-using PORTA = Instance<PORT, 0x0400>;
+using PORTA = ::picolibrary::Peripheral::Instance<PORT, 0x0400>;
 
 #if defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) \
     || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 /**
  * \brief PORTB.
  */
-using PORTB = Instance<PORT, 0x0420>;
+using PORTB = ::picolibrary::Peripheral::Instance<PORT, 0x0420>;
 #endif // defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 
 /**
  * \brief PORTC.
  */
-using PORTC = Instance<PORT, 0x0440>;
+using PORTC = ::picolibrary::Peripheral::Instance<PORT, 0x0440>;
 
 /**
  * \brief PORTD.
  */
-using PORTD = Instance<PORT, 0x0460>;
+using PORTD = ::picolibrary::Peripheral::Instance<PORT, 0x0460>;
 
 #if defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) \
     || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 /**
  * \brief PORTE.
  */
-using PORTE = Instance<PORT, 0x0480>;
+using PORTE = ::picolibrary::Peripheral::Instance<PORT, 0x0480>;
 #endif // defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 
 /**
  * \brief PORTF.
  */
-using PORTF = Instance<PORT, 0x04A0>;
+using PORTF = ::picolibrary::Peripheral::Instance<PORT, 0x04A0>;
 
 /**
  * \brief PORTMUX0.
  */
-using PORTMUX0 = Instance<PORTMUX, 0x05E0>;
+using PORTMUX0 = ::picolibrary::Peripheral::Instance<PORTMUX, 0x05E0>;
 
 /**
  * \brief ADC0.
  */
-using ADC0 = Instance<ADC, 0x0600>;
+using ADC0 = ::picolibrary::Peripheral::Instance<ADC, 0x0600>;
 
 /**
  * \brief AC0.
  */
-using AC0 = Instance<AC, 0x0680>;
+using AC0 = ::picolibrary::Peripheral::Instance<AC, 0x0680>;
 
 /**
  * \brief USART0.
  */
-using USART0 = Instance<USART, 0x800>;
+using USART0 = ::picolibrary::Peripheral::Instance<USART, 0x800>;
 
 /**
  * \brief USART1.
  */
-using USART1 = Instance<USART, 0x820>;
+using USART1 = ::picolibrary::Peripheral::Instance<USART, 0x820>;
 
 /**
  * \brief USART2.
  */
-using USART2 = Instance<USART, 0x840>;
+using USART2 = ::picolibrary::Peripheral::Instance<USART, 0x840>;
 
 #if defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) \
     || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 /**
  * \brief USART3.
  */
-using USART3 = Instance<USART, 0x860>;
+using USART3 = ::picolibrary::Peripheral::Instance<USART, 0x860>;
 #endif // defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 
 /**
  * \brief TWI0.
  */
-using TWI0 = Instance<TWI, 0x08A0>;
+using TWI0 = ::picolibrary::Peripheral::Instance<TWI, 0x08A0>;
 
 /**
  * \brief SPI0.
  */
-using SPI0 = Instance<SPI, 0x08C0>;
+using SPI0 = ::picolibrary::Peripheral::Instance<SPI, 0x08C0>;
 
 /**
  * \brief TCA0.
  */
-using TCA0 = Instance<TCA, 0x0A00>;
+using TCA0 = ::picolibrary::Peripheral::Instance<TCA, 0x0A00>;
 
 /**
  * \brief TCB0.
  */
-using TCB0 = Instance<TCB, 0x0A80>;
+using TCB0 = ::picolibrary::Peripheral::Instance<TCB, 0x0A80>;
 
 /**
  * \brief TCB1.
  */
-using TCB1 = Instance<TCB, 0x0A90>;
+using TCB1 = ::picolibrary::Peripheral::Instance<TCB, 0x0A90>;
 
 /**
  * \brief TCB2.
  */
-using TCB2 = Instance<TCB, 0x0AA0>;
+using TCB2 = ::picolibrary::Peripheral::Instance<TCB, 0x0AA0>;
 
 #if defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) \
     || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 /**
  * \brief TCB3.
  */
-using TCB3 = Instance<TCB, 0x0AB0>;
+using TCB3 = ::picolibrary::Peripheral::Instance<TCB, 0x0AB0>;
 #endif // defined( __AVR_ATmega809__ ) || defined( __AVR_ATmega1609__ ) || defined( __AVR_ATmega3209__ ) || defined( __AVR_ATmega4809__ )
 
 /**
  * \brief SYSCFG0.
  */
-using SYSCFG0 = Instance<SYSCFG, 0x0F00>;
+using SYSCFG0 = ::picolibrary::Peripheral::Instance<SYSCFG, 0x0F00>;
 
 /**
  * \brief NVMCTRL0.
  */
-using NVMCTRL0 = Instance<NVMCTRL, 0x1000>;
+using NVMCTRL0 = ::picolibrary::Peripheral::Instance<NVMCTRL, 0x1000>;
 
 /**
  * \brief SIGROW0.
  */
-using SIGROW0 = Instance<SIGROW, 0x1100>;
+using SIGROW0 = ::picolibrary::Peripheral::Instance<SIGROW, 0x1100>;
 
 /**
  * \brief FUSE0.
  */
-using FUSE0 = Instance<FUSE, 0x1280>;
+using FUSE0 = ::picolibrary::Peripheral::Instance<FUSE, 0x1280>;
 
 /**
  * \brief USERROW0.
  */
-using USERROW0 = Instance<USERROW, 0x1300>;
+using USERROW0 = ::picolibrary::Peripheral::Instance<USERROW, 0x1300>;
 
 } // namespace picolibrary::Microchip::megaAVR0::Peripheral
 
diff --git a/include/picolibrary/microchip/megaavr0/peripheral/instance.h b/include/picolibrary/microchip/megaavr0/peripheral/instance.h
deleted file mode 100644
index 2da3b1a..0000000
--- a/include/picolibrary/microchip/megaavr0/peripheral/instance.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/**
- * picolibrary-microchip-megaavr0
- *
- * Copyright 2021-2023, Andrew Countryman <apcountryman@gmail.com> and the
- * picolibrary-microchip-megaavr0 contributors
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
- * file except in compliance with the License. You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under
- * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the specific language governing
- * permissions and limitations under the License.
- */
-
-/**
- * \file
- * \brief picolibrary::Microchip::megaAVR0::Peripheral::Instance interface.
- */
-
-#ifndef PICOLIBRARY_MICROCHIP_MEGAAVR0_PERIPHERAL_INSTANCE_H
-#define PICOLIBRARY_MICROCHIP_MEGAAVR0_PERIPHERAL_INSTANCE_H
-
-#include <cstdint>
-
-namespace picolibrary::Microchip::megaAVR0::Peripheral {
-
-/**
- * \brief Microchip megaAVR 0-series peripheral instance.
- *
- * \tparam T The peripheral type.
- * \tparam INSTANCE_ADDRESS The address of the peripheral instance.
- */
-template<typename T, std::uintptr_t INSTANCE_ADDRESS>
-class Instance {
-  public:
-    /**
-     * \brief The peripheral type.
-     */
-    using Type = T;
-
-    /**
-     * \brief The address of the peripheral instance.
-     */
-    static constexpr auto ADDRESS = INSTANCE_ADDRESS;
-
-    /**
-     * \brief Access the peripheral instance.
-     *
-     * \return The peripheral instance.
-     */
-    static auto instance() noexcept -> Type &
-    {
-        return *reinterpret_cast<Type *>( ADDRESS );
-    }
-
-    Instance() = delete;
-
-    Instance( Instance && ) = delete;
-
-    Instance( Instance const & ) = delete;
-
-    ~Instance() = delete;
-
-    auto operator=( Instance && ) = delete;
-
-    auto operator=( Instance const & ) = delete;
-};
-
-} // namespace picolibrary::Microchip::megaAVR0::Peripheral
-
-#endif // PICOLIBRARY_MICROCHIP_MEGAAVR0_PERIPHERAL_INSTANCE_H
diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index d2de882..c7e6651 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -44,7 +44,6 @@ set(
     "picolibrary/microchip/megaavr0/peripheral/crcscan.cc"
     "picolibrary/microchip/megaavr0/peripheral/evsys.cc"
     "picolibrary/microchip/megaavr0/peripheral/fuse.cc"
-    "picolibrary/microchip/megaavr0/peripheral/instance.cc"
     "picolibrary/microchip/megaavr0/peripheral/nvmctrl.cc"
     "picolibrary/microchip/megaavr0/peripheral/port.cc"
     "picolibrary/microchip/megaavr0/peripheral/portmux.cc"
diff --git a/source/picolibrary/microchip/megaavr0/peripheral/instance.cc b/source/picolibrary/microchip/megaavr0/peripheral/instance.cc
deleted file mode 100644
index e6ceea6..0000000
--- a/source/picolibrary/microchip/megaavr0/peripheral/instance.cc
+++ /dev/null
@@ -1,23 +0,0 @@
-/**
- * picolibrary-microchip-megaavr0
- *
- * Copyright 2021-2023, Andrew Countryman <apcountryman@gmail.com> and the
- * picolibrary-microchip-megaavr0 contributors
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
- * file except in compliance with the License. You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under
- * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the specific language governing
- * permissions and limitations under the License.
- */
-
-/**
- * \file
- * \brief picolibrary::Microchip::megaAVR0::Peripheral::Instance implementation.
- */
-
-#include "picolibrary/microchip/megaavr0/peripheral/instance.h"