diff --git a/machines/default.nix b/machines/default.nix
index 12900fb..3b49a2f 100644
--- a/machines/default.nix
+++ b/machines/default.nix
@@ -51,6 +51,10 @@ inputs: {
       substituteOnTarget = true;
     };
   };
+  regin = {
+    system = "aarch64-linux";
+    config = import ./regin/configuration.nix inputs;
+  };
   vm1 = {
     config = import ./vm1/configuration.nix inputs;
   };
diff --git a/machines/regin/configuration.nix b/machines/regin/configuration.nix
new file mode 100644
index 0000000..d79e3ed
--- /dev/null
+++ b/machines/regin/configuration.nix
@@ -0,0 +1,221 @@
+{ nixpkgs, nixos-hardware, ... }:
+{ config, pkgs, ... }:
+{
+  imports = [
+    "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
+
+    nixos-hardware.nixosModules.raspberry-pi-4
+
+    ../../users/root
+    ../../users/erwin
+  ];
+
+  eboskma = {
+    users.erwin.enable = true;
+    base.kernel = pkgs.linuxPackages_rpi4;
+    networking.enable = true;
+    nix-common.enable = true;
+    systemd.enable = true;
+  };
+
+  hardware = {
+    enableRedistributableFirmware = true;
+    raspberry-pi."4" = {
+      fkms-3d.enable = true;
+      audio.enable = true;
+    };
+  };
+
+  networking = {
+    hostName = "regin";
+    useDHCP = false;
+    useNetworkd = true;
+  };
+
+  systemd.network = {
+    enable = true;
+
+    networks = {
+      "40-eth0" = {
+        DHCP = "yes";
+      };
+    };
+  };
+
+  services.openssh.enable = true;
+
+  ### 3D printer config
+  # TODO: split to modules
+
+  ### Klipper
+  services.klipper = {
+    enable = true;
+    firmwares = {
+      mcu = {
+        enable = true;
+        configFile = ./firmware-config;
+        serial = "/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A600KWST-if00-port0";
+      };
+    };
+
+    settings = {
+      stepper_x = {
+        step_pin = "PA3";
+        dir_pin = "!PA1";
+        enabe_pin = "!PA5";
+        rotation_distance = 40;
+        microsteps = 16;
+        endstop_pin = "^PA0";
+        position_min = -10;
+        position_endstop = -10;
+        position_max = 195;
+        homing_speed = 50;
+        homing_retract_dist = 5;
+      };
+      stepper_y = {
+        step_pin = "PC6";
+        dir_pin = "!PC4";
+        enabe_pin = "!PA7";
+        rotation_distance = 40;
+        microsteps = 16;
+        endstop_pin = "^PA4";
+        position_min = 0;
+        position_endstop = 0;
+        position_max = 200;
+        homing_speed = 50;
+        homing_retract_dist = 5;
+      };
+      stepper_z = {
+        step_pin = "PC0";
+        dir_pin = "PG2";
+        enabe_pin = "!PC2";
+        rotation_distance = 2;
+        microsteps = 16;
+        endstop_pin = "^PC7";
+        position_min = 0;
+        position_endstop = 0;
+        position_max = 180;
+        homing_speed = 5;
+        homing_retract_dist = 5;
+      };
+
+      extruder = {
+        step_pin = "PL6";
+        dir_pin = "!PL4";
+        enable_pin = "!PG0";
+        rotation_distance = 34.043;
+        microsteps = 16;
+        nozzle_diameter = 0.400;
+        filament_diameter = 1.75;
+        max_extrude_only_distance = 150;
+        heater_pin = "PE4";
+        sensor_type = "EPCOS 100K B57560G104F";
+        sensor_pin = "PK0";
+        control = "pid";
+        pid_Kp = 12.33;
+        pid_Ki = 0.51;
+        pid_Kd = 74.50;
+        min_temp = 0;
+        max_temp = 250;
+        max_extrude_cross_section = 5;
+      };
+
+      heater_bed = {
+        heater_pin = "PG5";
+        sensor_type = "ATC Semitec 104GT-2";
+        sensor_pin = "PK2";
+        control = "pid";
+        pid_Kp = 234.88;
+        pid_Ki = 42.79;
+        pid_Kd = 322.28;
+        min_temp = 0;
+        max_temp = 120;
+      };
+
+      bed_screws = {
+        screw1 = "20,7";
+        screw2 = "190,7";
+        screw3 = "190,180";
+        screw4 = "20,180";
+      };
+
+      fan.pin = "PH4";
+
+      mcu.serial = config.services.klipper.firmwares.mcu.serial;
+
+      printer = {
+        kinematics = "cartesian";
+        max_velocity = 400;
+        max_accel = 5000;
+        max_z_velocity = 5;
+        max_z_accel = 75;
+      };
+
+      display = {
+        lcd_type = "hd44780";
+        rs_pin = "PD1";
+        e_pin = "PH0";
+        d4_pin = "PH1";
+        d5_pin = "PD0";
+        d6_pin = "PE3";
+        d7_pin = "PH3";
+        encoder_pins = "PL7,PG1";
+        click_pin = "^!PD2";
+      };
+
+      # These are necessary for Fluidd
+      virtual_sdcard = {
+        path = "/var/lib/klipper/gcode_files";
+      };
+
+      display_status = { };
+
+      pause_resume = { };
+    } // (import ./klipper-macros.nix);
+  };
+
+  services.moonraker = {
+    enable = true;
+    allowSystemControl = true;
+    settings = {
+      authorization = {
+        cors_domains = [
+          "*.local"
+          "*://app.fluidd.xyz"
+        ];
+
+        trusted_clients = [
+          "10.0.0.0/24"
+          "10.1.0.0/24"
+          "127.0.0.0/8"
+          "fe80::/10"
+          "::1/128"
+        ];
+      };
+
+      history = { };
+
+      octoprint_compat = {
+        enable_ufp = false;
+      };
+
+      zeroconf = { };
+    };
+  };
+
+  services.fluidd = {
+    enable = true;
+    hostName = config.networking.hostName;
+  };
+
+  ### END 3D printer config
+
+  security = {
+    polkit.enable = true;
+  };
+  environment.systemPackages = with pkgs; [
+    raspberrypi-eeprom
+  ];
+
+  system.stateVersion = "23.05";
+}
diff --git a/machines/regin/firmware-config b/machines/regin/firmware-config
new file mode 100644
index 0000000..8e59b72
--- /dev/null
+++ b/machines/regin/firmware-config
@@ -0,0 +1,51 @@
+CONFIG_LOW_LEVEL_OPTIONS=y
+CONFIG_MACH_AVR=y
+# CONFIG_MACH_ATSAM is not set
+# CONFIG_MACH_ATSAMD is not set
+# CONFIG_MACH_LPC176X is not set
+# CONFIG_MACH_STM32 is not set
+# CONFIG_MACH_RP2040 is not set
+# CONFIG_MACH_PRU is not set
+# CONFIG_MACH_LINUX is not set
+# CONFIG_MACH_SIMU is not set
+CONFIG_AVR_SELECT=y
+CONFIG_BOARD_DIRECTORY="avr"
+CONFIG_MACH_atmega2560=y
+# CONFIG_MACH_atmega1280 is not set
+# CONFIG_MACH_at90usb1286 is not set
+# CONFIG_MACH_at90usb646 is not set
+# CONFIG_MACH_atmega32u4 is not set
+# CONFIG_MACH_atmega1284p is not set
+# CONFIG_MACH_atmega644p is not set
+# CONFIG_MACH_atmega328p is not set
+# CONFIG_MACH_atmega328 is not set
+# CONFIG_MACH_atmega168 is not set
+CONFIG_MCU="atmega2560"
+CONFIG_AVRDUDE_PROTOCOL="wiring"
+CONFIG_AVR_FREQ_16000000=y
+# CONFIG_AVR_FREQ_8000000 is not set
+CONFIG_CLOCK_FREQ=16000000
+CONFIG_AVR_CLKPR=-1
+CONFIG_AVR_STACK_SIZE=256
+CONFIG_AVR_WATCHDOG=y
+CONFIG_SERIAL=y
+CONFIG_AVR_SERIAL_UART0=y
+# CONFIG_AVR_SERIAL_UART1 is not set
+# CONFIG_AVR_SERIAL_UART2 is not set
+# CONFIG_AVR_SERIAL_UART3 is not set
+CONFIG_SERIAL_BAUD_U2X=y
+CONFIG_SERIAL_PORT=0
+CONFIG_SERIAL_BAUD=250000
+CONFIG_USB_VENDOR_ID=0x1d50
+CONFIG_USB_DEVICE_ID=0x614e
+CONFIG_USB_SERIAL_NUMBER="12345"
+CONFIG_CANBUS_FREQUENCY=500000
+CONFIG_INITIAL_PINS=""
+CONFIG_HAVE_GPIO=y
+CONFIG_HAVE_GPIO_ADC=y
+CONFIG_HAVE_GPIO_SPI=y
+CONFIG_HAVE_GPIO_I2C=y
+CONFIG_HAVE_GPIO_HARD_PWM=y
+CONFIG_HAVE_GPIO_BITBANGING=y
+CONFIG_HAVE_STRICT_TIMING=y
+CONFIG_INLINE_STEPPER_HACK=y
\ No newline at end of file
diff --git a/machines/regin/klipper-macros.nix b/machines/regin/klipper-macros.nix
new file mode 100644
index 0000000..0497cb8
--- /dev/null
+++ b/machines/regin/klipper-macros.nix
@@ -0,0 +1,129 @@
+{
+  "gcode_macro PAUSE" = {
+    description = "Pause the running print";
+    rename_existing = "PAUSE_BASE";
+    variable_extrude = 1.0;
+
+    gcode = ''
+      ##### read E from pause macro #####
+      {% set E = printer["gcode_macro PAUSE"].extrude|float %}
+      ##### set park positon for x and y #####
+      # default is your max posion from your printer.cfg
+      {% set x_park = printer.toolhead.axis_maximum.x|float - 5.0 %}
+      {% set y_park = printer.toolhead.axis_maximum.y|float - 5.0 %}
+      ##### calculate save lift position #####
+      {% set max_z = printer.toolhead.axis_maximum.z|float %}
+      {% set act_z = printer.toolhead.position.z|float %}
+      {% if act_z < (max_z - 2.0) %}
+          {% set z_safe = 2.0 %}
+      {% else %}
+          {% set z_safe = max_z - act_z %}
+      {% endif %}
+      ##### end of definitions #####
+      PAUSE_BASE
+      G91
+      {% if printer.extruder.can_extrude|lower == 'true' %}
+        G1 E-{E} F2100
+      {% else %}
+        {action_respond_info("Extruder not hot enough")}
+      {% endif %}
+      {% if "xyz" in printer.toolhead.homed_axes %}
+        G1 Z{z_safe} F900
+        G90
+        G1 X{x_park} Y{y_park} F6000
+      {% else %}
+        {action_respond_info("Printer not homed")}
+      {% endif %}
+    '';
+  };
+
+  "gcode_macro RESUME" = {
+    description = "Resume a paused print";
+    rename_existing = "RESUME_BASE";
+    gcode = ''
+      ##### read E from pause macro #####
+      {% set E = printer["gcode_macro PAUSE"].extrude|float %}
+      #### get VELOCITY parameter if specified ####
+      {% if 'VELOCITY' in params|upper %}
+        {% set get_params = ('VELOCITY=' + params.VELOCITY)  %}
+      {%else %}
+        {% set get_params = "" %}
+      {% endif %}
+      ##### end of definitions #####
+      {% if printer.extruder.can_extrude|lower == 'true' %}
+        G91
+        G1 E{E} F2100
+      {% else %}
+        {action_respond_info("Extruder not hot enough")}
+      {% endif %}
+      RESUME_BASE {get_params}
+    '';
+  };
+
+  "gcode_macro CANCEL_PRINT" = {
+    description = "Cancel the running print";
+    rename_existing = "CANCEL_PRINT_BASE";
+    gcode = ''
+      TURN_OFF_HEATERS
+      CLEAR_PAUSE
+      SDCARD_RESET_FILE
+      CANCEL_PRINT_BASE
+      END_PRINT
+    '';
+  };
+
+  "gcode_macro START_PRINT" = {
+    description = "Start of print base sequence";
+    variable_bed_temp = 60;
+    variable_extruder_temp = 200;
+    gcode = ''
+      # Start bed heating
+      M140 S{bed_temp}
+      # Reset the G-Code Z offset (adjust Z offset if needed)
+      SET_GCODE_OFFSET Z=0.0
+      # Home the printer
+      G28
+      # Use absolute coordinates
+      G90
+      # Reset extruder distance
+      G92 E0
+      # Move the nozzle near the bed
+      #G1 Z5 F3000
+      # Move the nozzle very close to the bed
+      #G1 Z0.15 F300
+      # Wait for bed to reach temperature
+      M190 S{bed_temp}
+      # Set and wait for nozzle to reach temperature
+      M109 S{extruder_temp}
+      # Prime the nozzle
+      G1 X-3 F500 # Move out of print volume
+      # G1 E4 F500 # Build a bit of pressure
+      # G1 Y60 E9 F500 # start purge line
+      # G1 Y100 E12.5 F500 # finish purge line
+      # Prime the nozzle
+      G1 Y140 E15 F1500
+    '';
+  };
+
+  "gcode_macro END_PRINT" = {
+    description = "End-of-print sequence";
+    gcode = ''
+      # Turn off bed, extruder, and fan
+      M140 S0
+      M104 S0
+      M107
+      # Move nozzle away from print while retracting
+      G91
+      G1 X-2 Y-2 E-5 F300
+      # Raise nozzle by 10mm
+      G1 Z10 F3000
+      # Home X axis
+      G28 X
+      G90
+      # Move bed forward
+      G1 Y180
+      # Disable X, Y and extruder steppers
+      M84 X Y E
+    '';
+  };
+}