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diff --git a/plugins/hardware/tncs/README.md b/plugins/hardware/tncs/README.md
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+# Hardware: TNCs
+
+Serial and USB Terminal Node Controllers. Merged from **TNCs-Stack** (`stacks/tncs/`).
+
+## HyBBX
+
+`packet_radio` plugin with `tnc=` profile per device.
+
+| Device | `tnc=` | Serial |
+|--------|--------|--------|
+| TNC2C | `tnc2c` | 19200 8N1, RTS/DTR |
+| PK-TNC2 | `tnc2` | 9600/2400 8N1 (planned) |
+
+## Build & test
+
+```bash
+./scripts/build.sh
+./stacks/tncs/tnc2c-integration-test.sh   # with hardware
+```
+
+## Docs
+
+- [stacks/tncs/README.md](../../stacks/tncs/README.md)
+- [stacks/tncs/docs/TNC2C-OPERATIONS.md](../../stacks/tncs/docs/TNC2C-OPERATIONS.md)
+- [stacks/tncs/docs/TNC2C-REFERENCE.md](../../stacks/tncs/docs/TNC2C-REFERENCE.md)
diff --git a/plugins/hardware/tncs/plugin.yaml b/plugins/hardware/tncs/plugin.yaml
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+id: tncs
+type: hardware
+parent_stack: MainAX25-Stack (MAX25-Stack)
+label: TNCs
+description: Serial/USB TNC hardware group — async host protocols (KISS, hostmode, 6PACK)
+
+stack_path: stacks/tncs
+hybbx_plugin: packet_radio
+hybbx_doc: ../../docs/HYBBX.md#packet_radio
+
+protocols:
+  - kiss
+  - hostmode
+  - sixpack
+
+build:
+  makefile: stacks/tncs/Makefile
+  targets: [all, test, integration, health, boot-wait]
+
+ctl:
+  health: stacks/tncs/tnc2c-health.sh
+  boot_wait: stacks/tncs/tnc2c-boot-wait.sh
+  integration: stacks/tncs/tnc2c-integration-test.sh
+  listen: stacks/tncs/tnc2c-listen.sh
+
+devices:
+  - tnc2c
+  - pktnc2