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diff --git a/plugins/devices/soft-crdop/README.md b/plugins/devices/soft-crdop/README.md
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+# Device: soft-crdop (MAX25-SoftModem / CRDOP — MAX25-SoftModem)
+
+**CRDOP** = stack acronym for **MAX25-SoftModem** (device id `soft-crdop`).
+
+**Status:** `active` — MAX25-Stack **standard subproject** (`stacks/crdop/`).
+
+**Canonical rule:** [docs/CRDOP.md](../../../docs/CRDOP.md) · **License:** GNU GPL v3
+
+## Summary
+
+| Topic | Policy |
+|-------|--------|
+| Type | Sound-card software modem subproject |
+| Compatibility | **AX.25 / KISS / TNC / modem** (software-modem domain) |
+| Mission | **Hardware solutions** (primary) + pure **software** on computers |
+| Audio | Kernel ALSA + MAX25 sound-proxy — **no PulseAudio** |
+| Build | Default ON — `-DMAX25_BUILD_CRDOP=OFF` to skip |
+
+## Quick start
+
+```bash
+./scripts/build.sh
+./scripts/max25-ctl start --hardware soft-modems --device soft-crdop
+```
+
+See [docs/CRDOP.md](../../../docs/CRDOP.md) for full project rules.
diff --git a/plugins/devices/soft-crdop/plugin.yaml b/plugins/devices/soft-crdop/plugin.yaml
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+id: soft-crdop
+type: device
+parent_stack: MainAX25-Stack (MAX25-Stack)
+hardware: soft-modems
+label: MAX25-SoftModem (CRDOP — CB/AR Digital Open Protocol)
+status: active
+
+product:
+  name: MAX25-SoftModem
+  phase: development_and_testing
+  development: in-house
+  baud_primary: 1200
+  baud_max: 19200
+  duplex: [half, full]
+  ax25_packet_radio: acoustically_compatible
+  use_like_hardware_modem: true
+  protocol_primary: max25-softmodem
+  audio_hardware: required
+
+note: |
+  CRDOP = CB/AR Digital Open Protocol (CB = Citizens Band, AR = Amateur Radio).
+  MAX25-Stack STANDARD subproject (stacks/crdop/) — GNU GPLv3.
+  Sound-card based; kernel ALSA + MAX25 sound-proxy; no PulseAudio.
+  Full AX.25/KISS/TNC/modem compatibility goal. Hardware-solution-first.
+  Static project rule: docs/CRDOP.md
+
+hybbx:
+  plugin: crdop
+  transport: tcp
+  control_port: 8515
+  data_port: 8516
+  profile: cb
+
+modem:
+  protocol: max25-softmodem
+  duplex: half
+  duplex_modes: [half, full]
+  default_speed_baud: 1200
+  max_speed_baud: 19200
+  ax25_acoustic: true
+  packet_radio_compatible: true
+  audio: alsa
+  audio_backend: alsa-kernel
+  audio_path: max25-sound-proxy
+  no_pulseaudio: true
+  audio_required: true
+  coupling: [line_level, acoustic]
+
+runtime:
+  ctl_start: stacks/crdop/scripts/crdopc
+  default_ini: stacks/crdop/share/crdop.ini.example
+  env:
+    - CRDOP_INI
+  cmake_option_off: MAX25_BUILD_CRDOP
+  shipped_default: true
+
+ini:
+  - stacks/crdop/share/crdop.ini.example
+  - stacks/crdop/share/crdop-dual.ini.example
+  - stacks/crdop/share/crdop-amateur.ini.example
+  - share/hybbx/crdop-host.ini.example
+
+client:
+  - share/clients/soft-crdop.yaml
+
+license: GPL-3.0-or-later
+
+docs:
+  - docs/CRDOP.md
+  - stacks/crdop/docs/SOFTMODEM.md
+  - stacks/crdop/docs/AUDIO-ARCHITECTURE.md
+  - stacks/crdop/docs/CONFIG.md
+  - stacks/crdop/ROADMAP.md
+
+scripts:
+  build: stacks/crdop/scripts/build-crdop.sh
+  start: stacks/crdop/scripts/crdopc