diff --git a/README.md b/README.md
index af29cbc..2b36341 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,7 @@ detail.
 
 ## Authorship and assets
 
-NETfishing is human-directed and uses a mixture of human-authored assets and
+NETfishing uses a mixture of original assets and
 software-development assistance. The project records this plainly rather than
 claiming that repository history can prove how each line was produced. See
 [`CREDITS.md`](CREDITS.md) and
diff --git a/docs/PORTMASTER-PERFORMANCE.md b/docs/PORTMASTER-PERFORMANCE.md
new file mode 100644
index 0000000..8c53f34
--- /dev/null
+++ b/docs/PORTMASTER-PERFORMANCE.md
@@ -0,0 +1,28 @@
+# PortMaster performance profile
+
+The PortMaster launcher keeps the normal game profile on unknown and stronger
+hardware. It enables the low-end profile only when the Linux device tree
+reports one of the identifiers used by the Allwinner H616/H700 XX handhelds:
+
+- `allwinner,h616`
+- `sun50iw9p1`
+- `allwinner,sun50i-h700`
+
+The low-end launch profile passes these options to Godot:
+
+- `--single-window`
+- `--disable-vsync`
+- `--max-fps 30`
+- `--audio-output-latency 40`
+
+It also passes `NETFISHING_LOW_END=1`. The game responds by rendering the 3D
+world at 75 percent linear resolution with nearest-neighbor scaling. This
+reduces 3D pixel work by about 44 percent while the separately rendered UI
+retains its canonical resolution.
+
+Do not use Godot's low processor mode for this profile. It reduces idle CPU
+usage by sleeping between updates and is not a game-performance optimization.
+
+When adding another device family, record its exact NUL-separated device-tree
+`compatible` value from the hardware before extending the launcher match. Do
+not infer detection from a retail product name alone.
diff --git a/docs/PORTMASTER-RELEASE.md b/docs/PORTMASTER-RELEASE.md
new file mode 100644
index 0000000..3bfae87
--- /dev/null
+++ b/docs/PORTMASTER-RELEASE.md
@@ -0,0 +1,137 @@
+# PortMaster release builds
+
+NETfishing's PortMaster release is a canonical PortMaster package, not a
+version-named generic ZIP. The installer-facing archive must be named
+`netfishing.zip`, and its root must contain exactly:
+
+```text
+NETfishing.sh
+netfishing/
+port.json
+```
+
+Do not derive a release package from an older local `portmaster-stage`
+directory. The templates in `scripts/portmaster/` are authoritative.
+
+## Release contract
+
+- `port.json` uses schema version 4 and names `netfishing.zip`.
+- `NETfishing.sh` starts with `# PORTMASTER: netfishing.zip, NETfishing.sh`.
+- The executable is `netfishing/NETfishing.aarch64`.
+- The package declares AArch64, two analog sticks, GLIBC 2.28, and
+  `weston_pkg_0.2.squashfs`.
+- The launcher must not start GPTOKEYB. Godot and NETfishing's controller
+  mapping manager handle controller input directly.
+- Persistent device data remains under `netfishing/conf/data`,
+  `netfishing/conf/config`, and `netfishing/conf/cache`.
+- The archive must not contain `conf/`, saves, identities, logs, source files,
+  `.git`, or `.godot` content.
+- Release downloads must publish `netfishing.zip`. A renamed versioned ZIP is
+  not a substitute because HarbourMaster identifies the canonical port by
+  archive name.
+
+## Build
+
+Run this only after the release commit and annotated `v<project-version>` tag
+are pinned to the same clean `main` commit:
+
+```bash
+bash scripts/build_portmaster.sh
+```
+
+The script deletes and regenerates the Linux ARM64 export, stages the package,
+validates its structure, and writes:
+
+```text
+builds/v<project-version>/netfishing.zip
+```
+
+`--package-only` is reserved for repackaging an already validated ARM64 export.
+It does not rebuild game content.
+
+## Local muOS installation
+
+The muOS auto-install directory is:
+
+```text
+/mnt/mmc/MUOS/PortMaster/autoinstall/
+```
+
+For an explicit offline installation test, copy `netfishing.zip` to a temporary
+device directory and run:
+
+```bash
+/mnt/mmc/MUOS/PortMaster/harbourmaster \
+  --offline --no-check install ./netfishing.zip
+```
+
+Before upgrading an existing installation, preserve
+`/mnt/mmc/ports/netfishing/conf/` on the device. After installation:
+
+1. Confirm the installed executable and PCK hashes match the staged release.
+2. Confirm the installed launcher contains the canonical PortMaster header and
+   does not contain `GPTOKEYB`.
+3. Confirm `conf/` was not replaced or removed.
+4. Launch the installed port through the normal muOS menu.
+5. Verify the displayed game version and controller face-button mapping.
+
+Installing the public PortMaster catalog entry can still install an older
+catalog build until the upstream `netfishing.zip` is updated. A local release
+test must install the generated local archive explicitly.
+
+## Template provenance
+
+The current catalog screenshot is a 640x480 PNG copied
+byte-for-byte into the package template:
+
+```text
+f24daae48f543b3a270a5aa46b5e73a31904bf0c7216d4c8a9e15a8dc48a5eed  screenshot.png
+```
+
+The remaining catalog metadata assets were copied from the installed official
+`netfishing.zip` package and are intentionally preserved byte-for-byte:
+
+```text
+e2a9d132744684c67865c01eca027a8c9946b4c5a19da57c82f1af0373dc83b7  gameinfo.xml
+ff08aacc52bbdc95616320800da3eaee0c0ba5fafdd962bf04f9655859409764  licenses/CREDITS.md
+b84fdd2c3da5db56385cdbb639795e90aa3e035c53bc3591135f18df3331451f  licenses/Tuffy-LICENSE.txt
+```
+
+The original catalog porter credit, `Voyager`, remains in `port.json`.
+
+## muOS H700 controller mapping
+
+Godot 4.7.1 and the SDL2 utilities shipped by muOS identify the same virtual
+controller differently. The PortMaster SDL2 database uses GUID
+`19000000010000000100000000010000`, while Godot reports GUID
+`19004ca6010000000100000000010000`. Passing the SDL2 entry unchanged leaves
+most controls unmapped in Godot.
+
+The device-verified Godot mapping is:
+
+- A `b0`, B `b1`, Y `b2`, X `b3`
+- left bumper `b4`, right bumper `b5`
+- select `b6`, start `b7`, guide `b8`
+- left-stick click `b9`, left trigger `b10`, right trigger `b11`, right-stick click `b12`
+- D-pad `h0`; left and right sticks `a0..a3`
+
+`scripts/portmaster/NETfishing.sh` must replace the incompatible SDL2 entry
+with the Godot entry when that SDL2 GUID is selected. Do not append the two
+entries with a newline: WestonPack evaluates launcher arguments through a
+shell and treats the second line as a command. Pass the single selected mapping
+as `SDL_GAMECONTROLLERCONFIG` in the game command after Weston initializes;
+Weston sources PortMaster's control file internally and otherwise restores the
+SDL2 value.
+
+Do not call `Input.add_joy_mapping(..., true)` for a recognized connected muOS
+controller. Updating this virtual controller after connection can stop Godot
+from delivering its standardized controller events until restart.
+
+Before shipping a PortMaster build on H700 hardware, verify all of the
+following in the installed game:
+
+- A, B, X, and Y each register independently.
+- The D-pad navigates every menu direction.
+- Both sticks, both bumpers, both triggers, Select, Start, L3, and R3 register.
+- A single button never cancels auto-map.
+- Holding both bumpers together for 1.25 seconds cancels auto-map.
diff --git a/scripts/build_portmaster.sh b/scripts/build_portmaster.sh
new file mode 100755
index 0000000..cea49cd
--- /dev/null
+++ b/scripts/build_portmaster.sh
@@ -0,0 +1,155 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+readonly SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+readonly PROJECT_ROOT="$(cd -- "${SCRIPT_DIR}/.." && pwd)"
+readonly TEMPLATE_ROOT="${SCRIPT_DIR}/portmaster"
+readonly GODOT_BIN="${GODOT_BIN:-godot}"
+
+PACKAGE_ONLY=0
+if [[ "${1:-}" == "--package-only" ]]; then
+  PACKAGE_ONLY=1
+  shift
+fi
+if [[ $# -ne 0 ]]; then
+  echo "Usage: $0 [--package-only]" >&2
+  exit 2
+fi
+
+readonly PROJECT_VERSION="$(
+  sed -n 's/^config\/version="\([^"]*\)"/\1/p' "${PROJECT_ROOT}/project.godot"
+)"
+if [[ -z "${PROJECT_VERSION}" ]]; then
+  echo "Could not read application/config/version from project.godot." >&2
+  exit 1
+fi
+
+readonly RELEASE_TAG="v${PROJECT_VERSION}"
+readonly RELEASE_ROOT="${PROJECT_ROOT}/builds/${RELEASE_TAG}"
+readonly ARM64_ROOT="${RELEASE_ROOT}/linux-arm64"
+readonly ARM64_EXECUTABLE="${ARM64_ROOT}/NETfishing.arm64"
+readonly ARM64_PCK="${ARM64_ROOT}/NETfishing.pck"
+readonly STAGE_ROOT="${RELEASE_ROOT}/portmaster-stage"
+readonly GAME_ROOT="${STAGE_ROOT}/netfishing"
+readonly ARCHIVE="${RELEASE_ROOT}/netfishing.zip"
+readonly LEGACY_ARCHIVE="${RELEASE_ROOT}/netfishing-${RELEASE_TAG}-portmaster-arm64.zip"
+
+readonly HEAD_COMMIT="$(git -C "${PROJECT_ROOT}" rev-parse HEAD)"
+readonly TAG_COMMIT="$(git -C "${PROJECT_ROOT}" rev-parse "${RELEASE_TAG}^{commit}")"
+if [[ "${HEAD_COMMIT}" != "${TAG_COMMIT}" ]]; then
+  echo "HEAD does not match ${RELEASE_TAG}. Refusing to package mutable source." >&2
+  exit 1
+fi
+if [[ "${NETFISHING_ALLOW_DIRTY_RELEASE:-0}" != "1" ]]; then
+  dirty_tree=0
+  git -C "${PROJECT_ROOT}" diff --quiet || dirty_tree=1
+  git -C "${PROJECT_ROOT}" diff --cached --quiet || dirty_tree=1
+  if [[ -n "$(git -C "${PROJECT_ROOT}" status --porcelain --untracked-files=normal)" ]]; then
+    dirty_tree=1
+  fi
+  if [[ ${dirty_tree} -ne 0 ]]; then
+    echo "The repository is not clean. Refusing to build a release package." >&2
+    exit 1
+  fi
+fi
+
+for command_name in git file zip unzip sha256sum; do
+  command -v "${command_name}" >/dev/null 2>&1 || {
+    echo "Required command not found: ${command_name}" >&2
+    exit 1
+  }
+done
+
+mkdir -p -- "${ARM64_ROOT}" "${RELEASE_ROOT}"
+if [[ ${PACKAGE_ONLY} -eq 0 ]]; then
+  rm -f -- "${ARM64_EXECUTABLE}" "${ARM64_PCK}"
+  "${GODOT_BIN}" \
+    --headless \
+    --path "${PROJECT_ROOT}" \
+    --export-release "Linux ARM64"
+fi
+
+test -s "${ARM64_EXECUTABLE}"
+test -s "${ARM64_PCK}"
+file "${ARM64_EXECUTABLE}" | grep -q "ARM aarch64"
+
+rm -rf -- "${STAGE_ROOT}"
+rm -f -- "${ARCHIVE}" "${LEGACY_ARCHIVE}"
+mkdir -p -- "${GAME_ROOT}/licenses"
+
+install -m 0755 "${TEMPLATE_ROOT}/NETfishing.sh" "${STAGE_ROOT}/NETfishing.sh"
+install -m 0644 "${TEMPLATE_ROOT}/port.json" "${STAGE_ROOT}/port.json"
+install -m 0755 "${ARM64_EXECUTABLE}" "${GAME_ROOT}/NETfishing.aarch64"
+install -m 0644 "${ARM64_PCK}" "${GAME_ROOT}/NETfishing.pck"
+install -m 0644 "${TEMPLATE_ROOT}/gameinfo.xml" "${GAME_ROOT}/gameinfo.xml"
+install -m 0644 "${TEMPLATE_ROOT}/screenshot.png" "${GAME_ROOT}/screenshot.png"
+install -m 0644 \
+  "${TEMPLATE_ROOT}/licenses/CREDITS.md" \
+  "${GAME_ROOT}/licenses/CREDITS.md"
+install -m 0644 \
+  "${TEMPLATE_ROOT}/licenses/Tuffy-LICENSE.txt" \
+  "${GAME_ROOT}/licenses/Tuffy-LICENSE.txt"
+
+cat >"${GAME_ROOT}/BUILD-INFO.txt" <<EOF
+NETfishing PortMaster ARM64 build
+
+Project version: ${PROJECT_VERSION}
+Source commit: ${TAG_COMMIT}
+Engine/export template: $("${GODOT_BIN}" --version)
+Architecture: AArch64
+Minimum linked GLIBC symbol version: GLIBC_2.28
+Rendering method: gl_compatibility
+
+The executable and PCK were exported from the release commit listed above.
+Repository working-tree changes were not included in game content.
+EOF
+
+cat >"${GAME_ROOT}/README.md" <<EOF
+# NETfishing for PortMaster
+
+This package contains NETfishing \`${RELEASE_TAG}\`, exported from Godot 4.7.1
+for 64-bit ARM Linux and wrapped for PortMaster.
+
+## Installation
+
+Install the complete \`netfishing.zip\` archive with PortMaster or HarbourMaster.
+The package requires an ARM64 device, two analog sticks, GLIBC 2.28 or newer,
+and the \`weston_pkg_0.2\` runtime.
+
+Save data and device-local configuration remain under \`netfishing/conf/\`.
+See \`netfishing/licenses/\` for bundled credits and license information.
+EOF
+
+(
+  cd "${STAGE_ROOT}"
+  zip -qry "${ARCHIVE}" NETfishing.sh netfishing port.json
+)
+
+unzip -tq "${ARCHIVE}" >/dev/null
+readonly TOP_LEVELS="$(
+  unzip -Z1 "${ARCHIVE}" | cut -d/ -f1 | sort -u
+)"
+readonly EXPECTED_TOP_LEVELS="$(printf '%s\n' NETfishing.sh netfishing port.json)"
+if [[ "${TOP_LEVELS}" != "${EXPECTED_TOP_LEVELS}" ]]; then
+  echo "Unexpected PortMaster archive roots:" >&2
+  printf '%s\n' "${TOP_LEVELS}" >&2
+  exit 1
+fi
+grep -q '"version": 4' "${STAGE_ROOT}/port.json"
+grep -q '"name": "netfishing.zip"' "${STAGE_ROOT}/port.json"
+grep -q '^# PORTMASTER: netfishing.zip, NETfishing.sh$' \
+  "${STAGE_ROOT}/NETfishing.sh"
+if grep -q 'GPTOKEYB' "${STAGE_ROOT}/NETfishing.sh"; then
+  echo "GPTOKEYB must not be enabled for NETfishing." >&2
+  exit 1
+fi
+if unzip -Z1 "${ARCHIVE}" | grep -E \
+  '(^|/)(conf|\.git|\.godot|logs?|saves?|identities?)(/|$)|\.(gd|tscn|blend)$' \
+  >/dev/null; then
+  echo "The PortMaster archive contains prohibited release content." >&2
+  exit 1
+fi
+
+sha256sum "${ARCHIVE}"
+echo "PortMaster package created at ${ARCHIVE}"
diff --git a/scripts/portmaster/NETfishing.sh b/scripts/portmaster/NETfishing.sh
new file mode 100755
index 0000000..58fbfbd
--- /dev/null
+++ b/scripts/portmaster/NETfishing.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+# PORTMASTER: netfishing.zip, NETfishing.sh
+
+XDG_DATA_HOME=${XDG_DATA_HOME:-$HOME/.local/share}
+
+if [ -d "/opt/system/Tools/PortMaster/" ]; then
+	controlfolder="/opt/system/Tools/PortMaster"
+elif [ -d "/opt/tools/PortMaster/" ]; then
+	controlfolder="/opt/tools/PortMaster"
+elif [ -d "$XDG_DATA_HOME/PortMaster/" ]; then
+	controlfolder="$XDG_DATA_HOME/PortMaster"
+else
+	controlfolder="/roms/ports/PortMaster"
+fi
+
+if [ ! -f "$controlfolder/control.txt" ]; then
+	echo "PortMaster control.txt was not found at $controlfolder" >&2
+	exit 1
+fi
+
+source "$controlfolder/control.txt"
+[ -f "${controlfolder}/mod_${CFW_NAME}.txt" ] && source "${controlfolder}/mod_${CFW_NAME}.txt"
+get_controls
+
+GAMEDIR="/${directory}/ports/netfishing"
+if [ ! -d "$GAMEDIR" ] && [ -d "/mnt/mmc/ports/netfishing" ]; then
+	GAMEDIR="/mnt/mmc/ports/netfishing"
+fi
+
+CONFDIR="$GAMEDIR/conf"
+GAME_EXECUTABLE="$GAMEDIR/NETfishing.aarch64"
+WESTON_DIR="/tmp/netfishing-weston"
+WESTON_RUNTIME="weston_pkg_0.2"
+HARBOURMASTER="$controlfolder/harbourmaster"
+if [ ! -x "$HARBOURMASTER" ] && [ -x "/mnt/mmc/MUOS/PortMaster/harbourmaster" ]; then
+	HARBOURMASTER="/mnt/mmc/MUOS/PortMaster/harbourmaster"
+fi
+
+mkdir -p "$CONFDIR/data" "$CONFDIR/config" "$CONFDIR/cache" "$WESTON_DIR"
+chmod +x "$GAME_EXECUTABLE"
+
+> "$GAMEDIR/log.txt" && exec > >(tee "$GAMEDIR/log.txt") 2>&1
+
+if [ ! -f "$controlfolder/libs/${WESTON_RUNTIME}.squashfs" ]; then
+	if [ ! -x "$HARBOURMASTER" ]; then
+		pm_message "NETfishing requires the latest PortMaster and WestonPack runtime."
+		sleep 5
+		exit 1
+	fi
+	$ESUDO "$HARBOURMASTER" --quiet --no-check runtime_check "${WESTON_RUNTIME}.squashfs"
+fi
+
+if [ ! -f "$controlfolder/libs/${WESTON_RUNTIME}.squashfs" ]; then
+	pm_message "WestonPack could not be installed. Check the network connection and PortMaster runtime manager."
+	sleep 5
+	exit 1
+fi
+
+if [[ "$PM_CAN_MOUNT" != "N" ]]; then
+	$ESUDO umount "$WESTON_DIR" 2>/dev/null
+fi
+$ESUDO mount "$controlfolder/libs/${WESTON_RUNTIME}.squashfs" "$WESTON_DIR"
+
+cd "$GAMEDIR" || exit 1
+
+# Godot 4.7 identifies the muOS H700 virtual controller with a CRC-bearing
+# GUID and numbers its buttons without the volume keys exposed by SDL2. The
+# PortMaster SDL2 database entry therefore cannot drive Godot's gamepad layer.
+GODOT_MUOS_MAPPING="19004ca6010000000100000000010000,muOS-Keys,a:b0,b:b1,x:b3,y:b2,leftshoulder:b4,rightshoulder:b5,lefttrigger:b10,righttrigger:b11,guide:b8,start:b7,back:b6,dpup:h0.1,dpleft:h0.8,dpright:h0.2,dpdown:h0.4,leftx:a0,lefty:a1,leftstick:b9,rightx:a2,righty:a3,rightstick:b12,platform:Linux,"
+MUOS_SDL2_GUID="19000000010000000100000000010000"
+if [[ "$sdl_controllerconfig" == "${MUOS_SDL2_GUID},"* ]]; then
+	netfishing_controllerconfig="$GODOT_MUOS_MAPPING"
+elif [ -n "$sdl_controllerconfig" ]; then
+	netfishing_controllerconfig="$sdl_controllerconfig"
+else
+	netfishing_controllerconfig="$GODOT_MUOS_MAPPING"
+fi
+
+NETFISHING_GODOT_OPTIONS=()
+NETFISHING_GAME_ENVIRONMENT=()
+DEVICE_COMPATIBILITY=""
+if [[ -r /proc/device-tree/compatible ]]; then
+	DEVICE_COMPATIBILITY="$(tr '\0' ' ' </proc/device-tree/compatible)"
+elif [[ -r /sys/firmware/devicetree/base/compatible ]]; then
+	DEVICE_COMPATIBILITY="$(
+		tr '\0' ' ' </sys/firmware/devicetree/base/compatible
+	)"
+fi
+case "$DEVICE_COMPATIBILITY" in
+	*allwinner,h616*|*sun50iw9p1*|*allwinner,sun50i-h700*)
+		NETFISHING_GAME_ENVIRONMENT+=("NETFISHING_LOW_END=1")
+		NETFISHING_GODOT_OPTIONS+=(
+			--single-window
+			--disable-vsync
+			--max-fps 30
+			--audio-output-latency 40
+		)
+		;;
+esac
+
+$ESUDO env CRUSTY_RESOLUTION="${DISPLAY_WIDTH}x${DISPLAY_HEIGHT}" \
+	"$WESTON_DIR/westonwrap.sh" headless noop kiosk crusty_x11egl \
+	XDG_DATA_HOME="$CONFDIR/data" \
+	XDG_CONFIG_HOME="$CONFDIR/config" \
+	XDG_CACHE_HOME="$CONFDIR/cache" \
+	SDL_GAMECONTROLLERCONFIG="$netfishing_controllerconfig" \
+	GODOT_SILENCE_ROOT_WARNING=1 \
+	"${NETFISHING_GAME_ENVIRONMENT[@]}" \
+	"$GAME_EXECUTABLE" \
+	"${NETFISHING_GODOT_OPTIONS[@]}" \
+	--resolution "${DISPLAY_WIDTH}x${DISPLAY_HEIGHT}" \
+	--fullscreen \
+	--rendering-driver opengl3_es \
+	--audio-driver ALSA
+
+$ESUDO "$WESTON_DIR/westonwrap.sh" cleanup
+if [[ "$PM_CAN_MOUNT" != "N" ]]; then
+	$ESUDO umount "$WESTON_DIR" 2>/dev/null
+fi
+pm_finish
diff --git a/scripts/portmaster/gameinfo.xml b/scripts/portmaster/gameinfo.xml
new file mode 100755
index 0000000..ef608bd
--- /dev/null
+++ b/scripts/portmaster/gameinfo.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<gameList>
+  <game>
+    <path>./NETfishing.sh</path>
+    <name>NETfishing</name>
+    <desc>A relaxed multiplayer fishing game about exploring a small island, catching and collecting fish, customizing your character, and spending time by the water.</desc>
+    <releasedate>20260804T000000</releasedate>
+    <developer>NETfishing project</developer>
+    <publisher>Independent</publisher>
+    <genre>adventure, simulation</genre>
+    <image>./netfishing/screenshot.png</image>
+  </game>
+</gameList>
diff --git a/scripts/portmaster/licenses/CREDITS.md b/scripts/portmaster/licenses/CREDITS.md
new file mode 100755
index 0000000..8edbd4f
--- /dev/null
+++ b/scripts/portmaster/licenses/CREDITS.md
@@ -0,0 +1,50 @@
+# Credits
+
+## Project direction
+
+NETfishing is designed, directed, reviewed, and released by its project
+creator. A public-facing creator or studio credit has not yet been recorded in
+this repository.
+
+## Development assistance
+
+Development has used automated coding assistance for implementation,
+investigation, testing, documentation, and review. Design choices, supplied
+artwork, acceptance decisions, repository operations, and releases remain
+human-controlled.
+
+This disclosure is intentionally about process. Commit style, code style, or
+repository metadata cannot reliably prove whether a particular change was
+written with or without assistance.
+
+## Fonts
+
+- Tuffy: Thatcher Ulrich, Karoly Barta, and Michael Evans. The bundled license
+  dedicates the work to the public domain; see `ui/fonts/Tuffy-LICENSE.txt`.
+- Seattle Avenue: bundled as `ui/fonts/seattle_avenue.otf`. Author and
+  redistribution terms still need to be recorded before public distribution.
+
+## Music
+
+- `audio/music/title/as_in_four_wolves.ogg`: original title/ambient music by
+  the project owner.
+
+## Sound effects
+
+- “Spinning reel.wav” by tosha73, used as the source for the fishing fight and
+  manual-reeling loops. Freesound sound 509902, Creative Commons Zero (CC0):
+  https://freesound.org/s/509902/
+- “Gentle Ocean Waves Loop” by kkenny101, used for the saltwater shoreline
+  ambience. Freesound sound 852826, Creative Commons Zero (CC0):
+  https://freesound.org/s/852826/
+- “Quick Water Droplet” by qubodup, used for the bobber water-impact sound.
+  Freesound sound 792931, Creative Commons Zero (CC0):
+  https://freesound.org/s/792931/
+
+## Artwork
+
+- 2D artwork: Rheannon Eisworth, contributor.
+- 3D models: original work by the project owner.
+
+Asset categories and release-record requirements are listed in
+[`docs/ASSET-PROVENANCE.md`](docs/ASSET-PROVENANCE.md).
diff --git a/scripts/portmaster/licenses/Tuffy-LICENSE.txt b/scripts/portmaster/licenses/Tuffy-LICENSE.txt
new file mode 100755
index 0000000..defced0
--- /dev/null
+++ b/scripts/portmaster/licenses/Tuffy-LICENSE.txt
@@ -0,0 +1,11 @@
+We, the copyright holders of this work, hereby release it into the
+public domain. This applies worldwide.
+
+In case this is not legally possible,
+
+We grant any entity the right to use this work for any purpose, without
+any conditions, unless such conditions are required by law.
+
+Thatcher Ulrich <tu@tulrich.com> http://tulrich.com
+Karoly Barta bartakarcsi@gmail.com
+Michael Evans http://www.evertype.com
diff --git a/scripts/portmaster/port.json b/scripts/portmaster/port.json
new file mode 100644
index 0000000..d14fa8f
--- /dev/null
+++ b/scripts/portmaster/port.json
@@ -0,0 +1,39 @@
+{
+  "version": 4,
+  "name": "netfishing.zip",
+  "items": [
+    "NETfishing.sh",
+    "netfishing/"
+  ],
+  "items_opt": null,
+  "attr": {
+    "title": "NETfishing",
+    "porter": [
+      "Voyager",
+      "asellite"
+    ],
+    "desc": "A relaxed multiplayer fishing game about exploring a small island, catching and collecting fish, customizing your character, and spending time by the water.",
+    "desc_md": null,
+    "inst": "Ready to run on supported ARM64 PortMaster devices. This alpha package requires two analog sticks.",
+    "inst_md": null,
+    "genres": [
+      "adventure",
+      "simulation"
+    ],
+    "image": {},
+    "rtr": false,
+    "exp": false,
+    "runtime": [
+      "weston_pkg_0.2.squashfs"
+    ],
+    "store": [],
+    "availability": "full",
+    "reqs": [
+      "analog_2"
+    ],
+    "arch": [
+      "aarch64"
+    ],
+    "min_glibc": "2.28"
+  }
+}
diff --git a/scripts/portmaster/screenshot.png b/scripts/portmaster/screenshot.png
new file mode 100755
index 0000000..4fe8f2e
Binary files /dev/null and b/scripts/portmaster/screenshot.png differ
diff --git a/scripts/portmaster/screenshot.png.import b/scripts/portmaster/screenshot.png.import
new file mode 100644
index 0000000..3aa5f2d
--- /dev/null
+++ b/scripts/portmaster/screenshot.png.import
@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://ww0w8iubiwsf"
+path="res://.godot/imported/screenshot.png-6eed5589b80ced9ab24aed11cadf34f5.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://scripts/portmaster/screenshot.png"
+dest_files=["res://.godot/imported/screenshot.png-6eed5589b80ced9ab24aed11cadf34f5.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/world/README-WORLD-AUTHORING.md b/world/README-WORLD-AUTHORING.md
index d596c05..60cfdc8 100644
--- a/world/README-WORLD-AUTHORING.md
+++ b/world/README-WORLD-AUTHORING.md
@@ -1,6 +1,6 @@
 # World authoring
 
-The active test world uses the human-authored starter island through
+The active test world uses the canonical starter island through
 `world/regions/starter_island_region.tscn`.
 
 ## Active composition