[chore](trx-rs): add sccache compilation cache

Bake sccache into the SDK image and enable it via RUSTC_WRAPPER in CI and
the devcontainer (not repo-wide, so non-SDK builds are unaffected).

- container/Containerfile: install the sccache musl binary.
- ci.yml: RUSTC_WRAPPER=sccache, CARGO_INCREMENTAL=0, SCCACHE_DIR=/sccache,
  cache size cap, plus a `sccache --show-stats` step per job.
- runner-config.example.yaml: bind-mount /var/cache/sccache into job
  containers so the cache persists across runs and is shared between jobs.
- .devcontainer: enable sccache with a named cache volume.

Assisted-By: Claude Code (claude-opus-4)
Claude-Session: https://claude.ai/code/session_01NFpGtGTWUEYXLwZeZs2RAV
Signed-off-by: Stan Grams <sjg@haxx.space>

.devcontainer/devcontainer.json

@@ -0,0 +1,22 @@
+{
+  "name": "trx-rs SDK",
+  "image": "git.haxx.space/sjg/trx-rs/sdk:latest",
+  "workspaceFolder": "/work",
+  "workspaceMount": "source=${localWorkspaceFolder},target=/work,type=bind",
+  "mounts": [
+    "source=trx-rs-sccache,target=/sccache,type=volume"
+  ],
+  "containerEnv": {
+    "RUSTC_WRAPPER": "sccache",
+    "CARGO_INCREMENTAL": "0",
+    "SCCACHE_DIR": "/sccache"
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "rust-lang.rust-analyzer",
+        "tamasfe.even-better-toml"
+      ]
+    }
+  }
+}

.gitea/workflows/ci.yml

@@ -2,10 +2,10 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-# CI for the self-hosted, host-executor Podman runners (see container/).
-# The runner image bakes in the Rust toolchain and all build dependencies,
-# so jobs go straight to cargo — no apt/rustup setup steps (which also
-# collided on the dpkg lock when jobs ran concurrently in the same runner).
+# CI for the Docker-executor runner (VM). The lint/test jobs run inside the
+# shared trx-rs SDK image (container/Containerfile), which bakes in the pinned
+# Rust toolchain and all build dependencies. The reuse job uses the upstream
+# Docker action, which the Docker executor launches as a sibling container.
 
 name: CI
 
@@ -16,32 +16,43 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
+  # sccache: shared compilation cache persisted on the runner host (see the
+  # -v mount in runner-config.example.yaml). CARGO_INCREMENTAL=0 because
+  # sccache cannot cache incremental artifacts.
+  RUSTC_WRAPPER: sccache
+  CARGO_INCREMENTAL: "0"
+  SCCACHE_DIR: /sccache
+  SCCACHE_CACHE_SIZE: "20G"
 
 jobs:
   lint:
     runs-on: ubuntu-latest
+    container: git.haxx.space/sjg/trx-rs/sdk:latest
     steps:
       - uses: actions/checkout@v4
       - name: rustfmt
         run: cargo fmt --all -- --check
       - name: clippy
         run: cargo clippy --workspace --all-targets --all-features -- -D warnings
+      - name: sccache stats
+        if: always()
+        run: sccache --show-stats
 
   test:
     runs-on: ubuntu-latest
+    container: git.haxx.space/sjg/trx-rs/sdk:latest
     steps:
       - uses: actions/checkout@v4
       - name: Build
         run: cargo build --workspace --all-targets --locked
       - name: Test
         run: cargo test --workspace --locked
+      - name: sccache stats
+        if: always()
+        run: sccache --show-stats
 
   reuse:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: REUSE compliance
-        # `reuse` CLI instead of fsfe/reuse-action: the latter is a Docker
-        # action, which the host-executor runners cannot run. `reuse` is baked
-        # into the runner image (see container/Containerfile).
-        run: reuse lint
+      - uses: fsfe/reuse-action@v5

REUSE.toml

@@ -12,6 +12,8 @@ path = [
     "trx-rs.toml.example",
     "docs/**",
     "aidocs/**",
+    "container/**",
+    ".devcontainer/**",
     "src/decoders/trx-ftx/README.md",
     "src/decoders/trx-wxsat/README.md",
     "assets/trx-logo.png",

container/Containerfile

@@ -2,60 +2,54 @@
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 
-# Gitea Actions runner image for trx-rs CI (host-executor / "Pattern B").
+# trx-rs SDK / build image.
 #
-# All build dependencies, the Rust toolchain, Node.js (for JS actions such as
-# actions/checkout and actions/cache) and the `reuse` tool are baked in, so CI
-# runs skip the per-run apt/rustup install cost. `sudo` is present so the
-# existing workflow's `sudo apt-get ...` / rustup steps remain valid — they
-# just become fast no-ops because everything is already installed.
+# Single source of truth for the build environment. Used two ways:
+#   * CI  — as the job container for the lint/test jobs (Docker executor).
+#   * Dev — run locally or via .devcontainer for a reproducible toolchain.
+#
+# Pinning the Rust version here (and in rust-toolchain.toml) means CI and every
+# developer share the exact same rustc/clippy, so "works locally, fails in CI"
+# cannot happen.
 FROM docker.io/library/debian:bookworm-slim
 
-ARG ACT_RUNNER_VERSION=0.2.11
+# Keep in sync with rust-toolchain.toml.
+ARG RUST_VERSION=1.97.1
 ARG NODE_MAJOR=20
 
 ENV DEBIAN_FRONTEND=noninteractive \
-    RUSTUP_HOME=/opt/rustup \
-    CARGO_HOME=/opt/cargo \
-    PATH=/opt/cargo/bin:/usr/local/bin:/usr/bin:/bin
+    RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:/usr/local/bin:/usr/bin:/bin
 
-# Base tooling + trx-rs build dependencies (mirrors .gitea/workflows/ci.yml).
+# Build dependencies (mirror README's manual instructions).
 RUN apt-get update && apt-get install -y --no-install-recommends \
-        ca-certificates curl xz-utils git sudo pipx \
+        ca-certificates curl git \
         build-essential pkg-config cmake clang libclang-dev \
         libopus-dev libasound2-dev libsoapysdr-dev \
     && rm -rf /var/lib/apt/lists/*
 
-# Node.js (JS-based actions need node in PATH under the host executor).
+# Node.js — JS-based actions (actions/checkout, actions/cache) run *inside*
+# the job container under the Docker executor, so node must be present.
 RUN curl -fsSL https://deb.nodesource.com/setup_${NODE_MAJOR}.x | bash - \
     && apt-get install -y --no-install-recommends nodejs \
     && rm -rf /var/lib/apt/lists/*
 
-# REUSE >= 3 (Debian's packaged reuse is too old for REUSE.toml).
-# The [charset-normalizer] extra provides an encoding-detection backend;
-# without it (and without libmagic) reuse fails to import at runtime.
-RUN PIPX_HOME=/opt/pipx PIPX_BIN_DIR=/usr/local/bin pipx install 'reuse[charset-normalizer]'
-
-# Rust stable with rustfmt + clippy, installed system-wide.
+# Pinned Rust toolchain, installed world-readable so any UID the runner or a
+# devcontainer uses can invoke cargo.
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
-        | sh -s -- -y --no-modify-path --profile minimal \
-          --component rustfmt --component clippy \
-    && chmod -R a+rwX "$CARGO_HOME" "$RUSTUP_HOME"
+      | sh -s -- -y --no-modify-path \
+        --default-toolchain "${RUST_VERSION}" --profile minimal \
+        --component rustfmt --component clippy \
+    && chmod -R a+rwX "$RUSTUP_HOME" "$CARGO_HOME"
 
-# act_runner binary.
-RUN arch="$(dpkg --print-architecture)"; \
-    case "$arch" in amd64) rarch=amd64;; arm64) rarch=arm64;; *) echo "unsupported arch $arch" >&2; exit 1;; esac; \
-    curl -fsSL -o /usr/local/bin/act_runner \
-      "https://gitea.com/gitea/act_runner/releases/download/v${ACT_RUNNER_VERSION}/act_runner-${ACT_RUNNER_VERSION}-linux-${rarch}" \
-    && chmod +x /usr/local/bin/act_runner
+# sccache — shared compilation cache. Enabled at build time via
+# RUSTC_WRAPPER (see the CI workflow and .devcontainer), not repo-wide, so
+# non-SDK builds are unaffected. musl build is static and runs anywhere.
+ARG SCCACHE_VERSION=0.8.2
+RUN curl -fsSL "https://github.com/mozilla/sccache/releases/download/v${SCCACHE_VERSION}/sccache-v${SCCACHE_VERSION}-x86_64-unknown-linux-musl.tar.gz" \
+      | tar -xz -C /tmp \
+    && install -m755 "/tmp/sccache-v${SCCACHE_VERSION}-x86_64-unknown-linux-musl/sccache" /usr/local/bin/sccache \
+    && rm -rf /tmp/sccache-*
 
-# Default config template (seeded into the /data volume on first boot).
-COPY config.yaml /etc/act_runner/config.yaml
-COPY entrypoint.sh /usr/local/bin/entrypoint.sh
-RUN chmod +x /usr/local/bin/entrypoint.sh
-
-# /data holds the .runner registration, cache and workflow workspaces.
-VOLUME /data
-WORKDIR /data
-
-ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+WORKDIR /work

container/README.md

@@ -3,116 +3,128 @@ SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
 SPDX-License-Identifier: GPL-2.0-or-later
 -->
 
-# Podman-based Gitea Actions runners
+# trx-rs SDK image
 
-Run two independent Gitea Actions runners on one host as rootless Podman
-containers managed by systemd (Quadlet) — one per project — instead of two
-VMs. Uses the **host executor**: workflow steps run directly inside a
-purpose-built runner image that already has the Rust toolchain and all build
-dependencies baked in, so CI runs skip the per-run install cost and no
-Docker/Podman socket is needed.
-
-## Files
+A single container image that is the canonical build environment for trx-rs,
+used **both** by CI and by developers. It bakes in the pinned Rust toolchain
+(matching `rust-toolchain.toml`) and every build dependency, so the compiler
+and `clippy` are identical everywhere — no "works on my machine".
 
 | File | Purpose |
 |------|---------|
-| `Containerfile` | Runner image: Debian + build deps + clang + Rust + Node + `reuse` + `act_runner`. |
-| `entrypoint.sh` | Registers on first boot (if needed), then runs the daemon. |
-| `config.yaml` | act_runner config template (seeded into each runner's volume). |
-| `trx-rs-runner.container` | Quadlet unit for the trx-rs runner. |
-| `project2-runner.container` | Quadlet unit for the second project's runner. |
+| `Containerfile` | The SDK image (Debian + build deps + pinned Rust + Node + git). |
+| `runner-config.example.yaml` | Example act_runner config for the CI VM (Docker executor). |
 
-## Prerequisites (once per host)
-
-Rootless Podman with cgroups v2 (default on modern distros). As the unprivileged
-user that will own the runners:
+## Build and publish
 
 ```bash
-# Survive logout / start on boot without an interactive session.
-loginctl enable-linger "$USER"
+# from the repo root
+podman build -t git.haxx.space/sjg/trx-rs/sdk:latest container
+podman login git.haxx.space
+podman push git.haxx.space/sjg/trx-rs/sdk:latest
 ```
 
-No `podman.socket` is required for the host executor.
+Tag with the Rust version too (e.g. `:1.97.1`) if you want reproducible pins.
+Make the package **public** (Gitea → Packages → the image → Settings) so the CI
+runner and developers can pull it without credentials. If you keep it private,
+add `credentials:` under the workflow's `container:` and log the runner into the
+registry.
 
-## 1. Build the image
+## Developer use
+
+Reproducible one-off build, no local toolchain needed:
 
 ```bash
-cd container
-podman build -t trx-rs-ci:latest .
+podman run --rm -it -v "$PWD":/work -w /work \
+  git.haxx.space/sjg/trx-rs/sdk:latest \
+  cargo build --release
 ```
 
-## 2. Get a registration token
+Or open the repo in the image via VS Code / JetBrains "Reopen in Container"
+(`.devcontainer/devcontainer.json` points at the same image).
 
-For **each** repo: *Settings → Actions → Runners → Create new Runner* and copy
-the token. (Org- or instance-level tokens work too if you prefer wider scope.)
+Building outside the container? `rust-toolchain.toml` pins the same rustc, so
+`rustup` installs the matching toolchain automatically.
 
-## 3. Install and start the runners
+## CI use
+
+`.gitea/workflows/ci.yml` runs the `lint` and `test` jobs *inside* this image
+via the `container:` key, so they skip all setup and go straight to `cargo`.
+The `reuse` job stays on the upstream `fsfe/reuse-action` (a Docker action the
+Docker executor launches as a sibling container) — nothing REUSE-related is
+baked into the SDK.
+
+## Compilation cache (sccache)
+
+The SDK image ships [`sccache`](https://github.com/mozilla/sccache). It is
+enabled via `RUSTC_WRAPPER=sccache` in CI and the devcontainer (not repo-wide,
+so plain `cargo` builds outside the SDK are unaffected).
+
+- **CI** persists the cache on the runner host — create the dir once:
+  `mkdir -p /var/cache/sccache`. It is bind-mounted into each job container at
+  `/sccache` (see `runner-config.example.yaml`), so cache survives across runs
+  and is shared between the lint/test jobs and both projects.
+- **Devcontainer** uses a named volume (`trx-rs-sccache`).
+- Check effectiveness with `sccache --show-stats` (the CI jobs print it).
+
+`CARGO_INCREMENTAL=0` is set wherever sccache is on, since sccache cannot cache
+incremental artifacts.
+
+## CI runner (Alpine / OpenRC)
+
+The runner uses the **Docker executor** (not the host executor): per-job
+container isolation and standard `ubuntu-latest` semantics. `act_runner` runs
+as an OpenRC service. Files provided:
+
+| File | Purpose |
+|------|---------|
+| `act_runner.openrc` | OpenRC init script (`supervise-daemon`, depends on docker). |
+| `act_runner.confd.example` | Per-instance `conf.d` settings for multi-runner hosts. |
+
+**Cap the thread budget.** In a VM, pin its vCPUs to specific host threads
+(libvirt/KVM):
+
+```xml
+<vcpu placement='static'>2</vcpu>
+<cputune>
+  <vcpupin vcpu='0' cpuset='4'/>
+  <vcpupin vcpu='1' cpuset='5'/>
+</cputune>
+```
+
+On bare metal, the `container.options: "--cpus=2"` and `capacity: 1` in
+`runner-config.example.yaml` already bound each runner.
+
+**Set it up:**
 
 ```bash
-mkdir -p ~/.config/containers/systemd
-cp trx-rs-runner.container project2-runner.container ~/.config/containers/systemd/
+# 1. Docker + a dedicated user with socket access
+apk add docker docker-cli
+rc-update add docker default && rc-service docker start
+adduser -S -D -H -h /var/lib/act_runner act
+addgroup act docker
 
-# Paste each repo's token for the FIRST boot only:
-#   Environment=GITEA_RUNNER_REGISTRATION_TOKEN=xxxx…
-$EDITOR ~/.config/containers/systemd/trx-rs-runner.container
-$EDITOR ~/.config/containers/systemd/project2-runner.container
+# 2. act_runner binary (static Go build, works on musl)
+curl -fsSL -o /usr/local/bin/act_runner \
+  https://gitea.com/gitea/act_runner/releases/download/v0.2.11/act_runner-0.2.11-linux-amd64
+chmod +x /usr/local/bin/act_runner
 
-systemctl --user daemon-reload
-systemctl --user start trx-rs-runner
-systemctl --user start project2-runner
+# 3. Config + register one runner per project (scope keeps their jobs apart)
+install -Dm644 container/runner-config.example.yaml /etc/act_runner/trx-rs.yaml
+install -d -o act /var/lib/act_runner/trx-rs
+su act -s /bin/sh -c 'cd /var/lib/act_runner/trx-rs && \
+  act_runner register --no-interactive \
+    --instance https://git.haxx.space --token <TOKEN> \
+    --name trx-rs-ci \
+    --labels "ubuntu-latest:docker://catthehacker/ubuntu:act-latest"'
 
-systemctl --user status trx-rs-runner
-podman logs -f gitea-runner-trx-rs
+# 4. OpenRC service (repeat the symlink+conf.d for the second project)
+install -m755 container/act_runner.openrc /etc/init.d/act_runner
+ln -s act_runner /etc/init.d/act_runner.trx-rs
+install -m644 container/act_runner.confd.example /etc/conf.d/act_runner.trx-rs
+rc-update add act_runner.trx-rs default
+rc-service act_runner.trx-rs start
 ```
 
-Once each runner shows **online** in the repo's runner list, blank out the
-`GITEA_RUNNER_REGISTRATION_TOKEN` line again (the registration is persisted in
-the `…-data` volume) and `systemctl --user daemon-reload`.
-
-## Required workflow change: the `reuse` job
-
-The host executor runs steps directly in the container and therefore **cannot
-run Docker-based actions**. The current `reuse` job uses `fsfe/reuse-action@v5`,
-which is a Docker action. `reuse` is baked into the image, so replace that job
-with a plain command:
-
-```yaml
-  reuse:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: REUSE compliance
-        run: reuse lint
-```
-
-The `lint` and `test` jobs need no changes: their `sudo apt-get …` and rustup
-steps still run, but become fast no-ops because the image already has those
-packages and the toolchain. (`sudo` is included in the image for exactly this
-reason.)
-
-> If you would rather keep Docker-based actions and per-run images, use the
-> **Docker executor** instead: drop the `:host` suffix from the label in
-> `config.yaml`, enable `systemctl --user --now enable podman.socket`, mount it
-> into the container, and set `container.docker_host` to the socket path. That
-> trades the baked-in speed for stronger per-job isolation.
-
-## Tuning
-
-- **`capacity`** (in `config.yaml`) — concurrent jobs per runner. Rust builds
-  are heavy; 1–2 is sensible when two runners share a host.
-- **`PodmanArgs=--cpus/--memory`** (in each `.container`) — hard resource caps
-  so one project cannot starve the other.
-- **SELinux** — the `:Z` volume flag is already set; keep it if SELinux is
-  enforcing.
-
-## Committing these files
-
-If you add this directory to a REUSE-checked repo, register the markdown in
-`REUSE.toml` (the other files carry inline SPDX headers):
-
-```toml
-[[annotations]]
-path = ["container/**"]
-SPDX-FileCopyrightText = "2026 Stan Grams <sjg@haxx.space>"
-SPDX-License-Identifier = "GPL-2.0-or-later"
-```
+Check it with `rc-service act_runner.trx-rs status` and
+`tail -f /var/log/act_runner.trx-rs.log`.

container/act_runner.confd.example

@@ -0,0 +1,14 @@
+# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Per-instance settings for an act_runner OpenRC service.
+# Copy to /etc/conf.d/<service-name>, e.g. /etc/conf.d/act_runner.trx-rs
+# (the name must match the /etc/init.d/ symlink).
+
+# User that runs the daemon. Must be a member of the `docker` group.
+runner_user="act"
+
+# Per-instance state dir (holds the .runner registration) and config file,
+# so two runners on one host stay independent.
+runner_dir="/var/lib/act_runner/trx-rs"
+runner_config="/etc/act_runner/trx-rs.yaml"

container/act_runner.openrc

@@ -0,0 +1,44 @@
+#!/sbin/openrc-run
+# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# OpenRC service for a Gitea act_runner (Docker executor) on Alpine.
+#
+# Install as /etc/init.d/act_runner (chmod +x). Single instance uses
+# /etc/act_runner/config.yaml. For one runner per project, symlink this script
+# and add a matching conf.d file:
+#
+#   ln -s act_runner /etc/init.d/act_runner.trx-rs
+#   cp container/act_runner.confd.example /etc/conf.d/act_runner.trx-rs
+#   $EDITOR /etc/conf.d/act_runner.trx-rs      # set runner_dir / runner_config
+#   rc-update add act_runner.trx-rs default
+#   rc-service act_runner.trx-rs start
+
+description="Gitea Actions runner"
+
+: "${runner_user:=act}"
+: "${runner_dir:=/var/lib/act_runner}"
+: "${runner_config:=/etc/act_runner/config.yaml}"
+
+command="/usr/local/bin/act_runner"
+command_args="daemon --config ${runner_config}"
+# No group given, so supplementary groups (incl. docker) are initialised.
+command_user="${runner_user}"
+directory="${runner_dir}"
+
+supervisor="supervise-daemon"
+respawn_delay=5
+respawn_max=0
+pidfile="/run/${RC_SVCNAME}.pid"
+output_log="/var/log/${RC_SVCNAME}.log"
+error_log="/var/log/${RC_SVCNAME}.log"
+
+depend() {
+	need docker
+	use net dns
+}
+
+start_pre() {
+	checkpath -d -m 0750 -o "${runner_user}" "${runner_dir}"
+	checkpath -f -m 0640 -o "${runner_user}" "${output_log}"
+}

container/config.yaml

@@ -1,32 +0,0 @@
-# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-# act_runner configuration template. Seeded into /data/config.yaml on first
-# boot; edit the copy inside the volume to change settings per runner.
-
-log:
-  level: info
-
-runner:
-  # Registration state. Relative to the daemon's working directory (/data).
-  file: .runner
-  # Concurrent jobs this runner will pick up. Rust builds are heavy — keep this
-  # modest, especially if two runners share one host. The trx-rs workflow has
-  # three parallel jobs (lint, test, reuse); capacity 2 lets two overlap.
-  capacity: 2
-  timeout: 3h
-  # Map the workflow's `runs-on: ubuntu-latest` to the HOST executor, i.e. run
-  # steps directly inside THIS container (which already has all the toolchain).
-  # No Docker/Podman socket is required in this mode.
-  labels:
-    - "ubuntu-latest:host"
-
-cache:
-  # Built-in actions cache server (used by actions/cache). Stored in the volume.
-  enabled: true
-  dir: "/data/cache"
-
-host:
-  # Where per-job workspaces are created.
-  workdir_parent: /data/workflows

container/entrypoint.sh

@@ -1,38 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-# Registers the runner on first boot (if no .runner state exists in /data),
-# then runs the act_runner daemon. Idempotent: on subsequent boots it reuses
-# the stored registration and ignores the token.
-set -euo pipefail
-
-CONFIG_FILE="${CONFIG_FILE:-/data/config.yaml}"
-
-cd /data
-
-# Seed the config from the image's template on first boot so it lives in the
-# persistent volume and can be edited there.
-if [ ! -f "$CONFIG_FILE" ]; then
-    cp /etc/act_runner/config.yaml "$CONFIG_FILE"
-fi
-
-# runner.file in config.yaml is ".runner" (relative to this CWD => /data/.runner).
-if [ ! -f /data/.runner ]; then
-    if [ -z "${GITEA_RUNNER_REGISTRATION_TOKEN:-}" ]; then
-        echo "ERROR: no /data/.runner registration and GITEA_RUNNER_REGISTRATION_TOKEN is empty." >&2
-        echo "       Grab a token from the repo's Settings -> Actions -> Runners and set it" >&2
-        echo "       in the Quadlet unit for the first boot only." >&2
-        exit 1
-    fi
-    echo "Registering runner '${GITEA_RUNNER_NAME:-podman}' with ${GITEA_INSTANCE_URL} ..."
-    act_runner register --no-interactive \
-        --config   "$CONFIG_FILE" \
-        --instance "${GITEA_INSTANCE_URL:?set GITEA_INSTANCE_URL}" \
-        --token    "$GITEA_RUNNER_REGISTRATION_TOKEN" \
-        --name     "${GITEA_RUNNER_NAME:-podman}" \
-        --labels   "${GITEA_RUNNER_LABELS:-ubuntu-latest:host}"
-fi
-
-exec act_runner daemon --config "$CONFIG_FILE"

container/project2-runner.container

@@ -1,40 +0,0 @@
-# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-# Rootless Podman Quadlet for the SECOND project's Gitea Actions runner,
-# co-located on the same host as the trx-rs runner.
-#
-# It has its own name, its own data volume and its own registration token, so
-# the two runners are fully independent. They share the `ubuntu-latest` label,
-# but registration SCOPE (which repo each token came from) keeps their jobs
-# separate — neither will pick up the other's work.
-#
-# If project 2 needs different build dependencies, build it its own image from
-# an adjusted Containerfile and point Image= at that instead of reusing the
-# trx-rs image below.
-
-[Unit]
-Description=Gitea Actions runner — project 2
-After=network-online.target
-Wants=network-online.target
-
-[Container]
-Image=localhost/gitea-act-runner:latest
-ContainerName=gitea-runner-project2
-Volume=gitea-runner-project2-data:/data:Z
-
-Environment=CONFIG_FILE=/data/config.yaml
-Environment=GITEA_INSTANCE_URL=https://git.haxx.space
-Environment=GITEA_RUNNER_NAME=project2-podman
-Environment=GITEA_RUNNER_LABELS=ubuntu-latest:host
-Environment=GITEA_RUNNER_REGISTRATION_TOKEN=
-
-PodmanArgs=--cpus=4.0 --memory=6g
-
-[Service]
-Restart=always
-TimeoutStartSec=0
-
-[Install]
-WantedBy=default.target

container/runner-config.example.yaml

@@ -0,0 +1,35 @@
+# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Example act_runner config for the Docker-executor runner that lives in the
+# CI VM. This is NOT the SDK image — it configures the runner that launches
+# per-job containers (including the trx-rs SDK image referenced by the
+# workflow's `container:` key). Copy to the VM and pass with
+# `act_runner daemon --config`.
+
+log:
+  level: info
+
+runner:
+  file: .runner
+  # One concurrent job. With one runner per project on a 2-vCPU VM this keeps
+  # total CI usage at ~2 threads.
+  capacity: 1
+  timeout: 3h
+  # Docker executor: no ":host" suffix. Maps runs-on labels to base images
+  # (the workflow overrides these per job via `container:`).
+  labels:
+    - "ubuntu-latest:docker://catthehacker/ubuntu:act-latest"
+
+cache:
+  enabled: true
+
+container:
+  # Cap every job container's CPU so CI stays within the 2-thread budget even
+  # if capacity is raised later. The -v mount persists the sccache cache on the
+  # host (create it first: `mkdir -p /var/cache/sccache`), matching SCCACHE_DIR
+  # in the workflow.
+  options: "--cpus=2 -v /var/cache/sccache:/sccache"
+  # Reuse the host VM's Docker network for the built-in cache/artifact server.
+  network: "host"

container/trx-rs-runner.container

@@ -1,41 +0,0 @@
-# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-# Rootless Podman Quadlet for the trx-rs Gitea Actions runner.
-# Install to ~/.config/containers/systemd/trx-rs-runner.container then:
-#   systemctl --user daemon-reload
-#   systemctl --user start trx-rs-runner
-#
-# First boot only: paste a registration token (repo Settings -> Actions ->
-# Runners) into GITEA_RUNNER_REGISTRATION_TOKEN. After the runner appears
-# online you can blank it again — the registration is persisted in the volume.
-
-[Unit]
-Description=Gitea Actions runner — trx-rs
-After=network-online.target
-Wants=network-online.target
-
-[Container]
-Image=localhost/trx-rs-ci:latest
-ContainerName=gitea-runner-trx-rs
-# Persistent state: .runner registration, cache, workspaces.
-Volume=gitea-runner-trx-rs-data:/data:Z
-
-Environment=CONFIG_FILE=/data/config.yaml
-Environment=GITEA_INSTANCE_URL=https://git.haxx.space
-Environment=GITEA_RUNNER_NAME=trx-rs-podman
-Environment=GITEA_RUNNER_LABELS=ubuntu-latest:host
-Environment=GITEA_RUNNER_REGISTRATION_TOKEN=
-
-# Resource caps so a heavy Rust build here cannot starve the other project's
-# runner on the same host. Tune to your box.
-PodmanArgs=--cpus=4.0 --memory=6g
-
-[Service]
-Restart=always
-# A cold Rust build can be slow; don't let systemd consider startup failed.
-TimeoutStartSec=0
-
-[Install]
-WantedBy=default.target

rust-toolchain.toml

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Pins the Rust toolchain for reproducible builds. Keep in sync with the
+# SDK image (container/Containerfile, ARG RUST_VERSION). rustup honours this
+# automatically for local builds outside the SDK container.
+
+[toolchain]
+channel = "1.97.1"
+components = ["rustfmt", "clippy"]

src/decoders/trx-wefax/src/image.rs

@@ -274,8 +274,7 @@ mod tests {
 
         // Pseudo-random noise vs gradient — correlation should be low.
         let noise: Vec<u8> = (0..256)
-            .map(|i| (i as u32).wrapping_mul(1_103_515_245).wrapping_add(12_345))
-            .map(|value| ((value >> 8) & 0xff) as u8)
+            .map(|i| ((i * 1103515245 + 12345) as u32 >> 8 & 0xff) as u8)
             .collect();
         let r = asm.correlation_with_last(&noise).expect("r");
         assert!(

src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html

@@ -1624,8 +1624,6 @@ SPDX-License-Identifier: GPL-2.0-or-later
     </div>
   </div>
   <script defer src="https://cdn.jsdelivr.net/npm/opus-decoder@0.7.11/dist/opus-decoder.min.js" charset="UTF-8"></script>
-  <script defer src="/vendor/leaflet.js"></script>
-  <script defer src="/leaflet-ais-tracksymbol.js"></script>
   <script defer src="/webgl-renderer.js"></script>
   <script defer src="/app.js"></script>
   <script>
@@ -1634,48 +1632,23 @@ SPDX-License-Identifier: GPL-2.0-or-later
   var pluginScripts = {
     'digital-modes': ['/ft8.js', '/ft4.js', '/ft2.js', '/wspr.js', '/cw.js', '/background-decode.js', '/sat.js', '/wefax.js'],
     'map-data': ['/map-core.js', '/ais.js', '/vdes.js', '/aprs.js', '/hf-aprs.js'],
-    'map': ['/map-core.js', '/ais.js', '/vdes.js', '/aprs.js', '/hf-aprs.js', '/sat.js', '/sat-scheduler.js'],
+    'map': ['/map-core.js', '/leaflet-ais-tracksymbol.js', '/ais.js', '/vdes.js', '/aprs.js', '/hf-aprs.js', '/sat.js', '/sat-scheduler.js'],
     'statistics': ['/map-core.js'],
     'bookmarks': ['/bookmarks.js'],
     'recorder': [],
     'settings': ['/vchan.js', '/scheduler.js']
   };
   var loaded = new Set();
-  var loading = new Map();
-
-  function loadScript(src) {
-    if (loaded.has(src)) return Promise.resolve();
-    if (loading.has(src)) return loading.get(src);
-
-    var request = new Promise(function(resolve, reject) {
-      var s = document.createElement('script');
-      s.src = src;
-      s.onload = function() {
-        loaded.add(src);
-        loading.delete(src);
-        resolve();
-      };
-      s.onerror = function() {
-        loading.delete(src);
-        reject(new Error('Failed to load plugin script: ' + src));
-      };
-      document.body.appendChild(s);
-    });
-    loading.set(src, request);
-    return request;
-  }
-
   function loadPlugins(tab) {
     var scripts = pluginScripts[tab];
-    if (!scripts) return Promise.resolve();
-    return scripts.reduce(function(sequence, src) {
-      return sequence.then(function() { return loadScript(src); });
-    }, Promise.resolve());
-  }
-
-  function requestPlugins(tab) {
-    return loadPlugins(tab).catch(function(err) {
-      console.error(err);
+    if (!scripts) return;
+    scripts.forEach(function(src) {
+      if (loaded.has(src)) return;
+      loaded.add(src);
+      var s = document.createElement('script');
+      s.src = src;
+      s.defer = true;
+      document.body.appendChild(s);
     });
   }
   // Eager plugin loading is triggered by app.js (after window.trx is set up)
@@ -1683,18 +1656,17 @@ SPDX-License-Identifier: GPL-2.0-or-later
   // loading them before app.js would cause map-core.js to crash when
   // window.trx is not yet defined.
   window.loadEagerPlugins = function() {
-    return Promise.all(
-      ['digital-modes', 'map-data', 'bookmarks', 'settings'].map(requestPlugins)
-    );
+    ['digital-modes', 'map-data', 'bookmarks', 'settings'].forEach(loadPlugins);
   };
   // Load others on tab switch
   document.addEventListener('click', function(e) {
     var tab = e.target.closest('[data-tab]');
-    if (tab) requestPlugins(tab.dataset.tab);
+    if (tab) loadPlugins(tab.dataset.tab);
   });
   window.loadPluginsForTab = loadPlugins;
 })();
   </script>
   <!-- Template cloning is handled by navigateToTab() in app.js -->
+  <script defer src="/vendor/leaflet.js"></script>
 </body>
 </html>

src/trx-server/src/audio.rs

@@ -378,7 +378,7 @@ pub struct DecoderHistories {
     pub lrpt: Mutex<VecDeque<(Instant, LrptImage)>>,
     pub wefax: Mutex<VecDeque<(Instant, WefaxMessage)>>,
     /// Approximate total entry count across all decoders, maintained
-    /// atomically so `estimated_total_count()` avoids 11 lock acquisitions.
+    /// atomically so `estimated_total_count()` avoids 9 lock acquisitions.
     total_count: AtomicUsize,
 }
 
@@ -845,23 +845,6 @@ impl DecoderHistories {
     pub fn estimated_total_count(&self) -> usize {
         self.total_count.load(Ordering::Relaxed)
     }
-
-    /// Rebuild the aggregate count after bulk restoration bypasses the normal
-    /// record methods.
-    pub(crate) fn recalculate_total_count(&self) {
-        let total = lock_or_recover(&self.ais, "ais_history").len()
-            + lock_or_recover(&self.vdes, "vdes_history").len()
-            + lock_or_recover(&self.aprs, "aprs_history").len()
-            + lock_or_recover(&self.hf_aprs, "hf_aprs_history").len()
-            + lock_or_recover(&self.cw, "cw_history").len()
-            + lock_or_recover(&self.ft8, "ft8_history").len()
-            + lock_or_recover(&self.ft4, "ft4_history").len()
-            + lock_or_recover(&self.ft2, "ft2_history").len()
-            + lock_or_recover(&self.wspr, "wspr_history").len()
-            + lock_or_recover(&self.lrpt, "lrpt_history").len()
-            + lock_or_recover(&self.wefax, "wefax_history").len();
-        self.total_count.store(total, Ordering::Relaxed);
-    }
 }
 
 /// Spawn the audio capture thread.

src/trx-server/src/history_store.rs

@@ -19,7 +19,7 @@ use pickledb::{PickleDb, PickleDbDumpPolicy, SerializationMethod};
 use serde::{de::DeserializeOwned, Deserialize, Serialize};
 
 use trx_core::decode::{
-    AisMessage, AprsPacket, CwEvent, Ft8Message, LrptImage, VdesMessage, WefaxMessage, WsprMessage,
+    AisMessage, AprsPacket, CwEvent, Ft8Message, VdesMessage, WefaxMessage, WsprMessage,
 };
 
 use crate::audio::DecoderHistories;
@@ -118,11 +118,6 @@ pub fn load_all(db: &PickleDb, rig_id: &str, histories: &Arc<DecoderHistories>)
             h.push_back(e);
         }
     }
-    if let Ok(mut h) = histories.hf_aprs.lock() {
-        for e in load_key::<AprsPacket>(db, &k("hf_aprs")) {
-            h.push_back(e);
-        }
-    }
     if let Ok(mut h) = histories.cw.lock() {
         for e in load_key::<CwEvent>(db, &k("cw")) {
             h.push_back(e);
@@ -133,32 +128,16 @@ pub fn load_all(db: &PickleDb, rig_id: &str, histories: &Arc<DecoderHistories>)
             h.push_back(e);
         }
     }
-    if let Ok(mut h) = histories.ft4.lock() {
-        for e in load_key::<Ft8Message>(db, &k("ft4")) {
-            h.push_back(e);
-        }
-    }
-    if let Ok(mut h) = histories.ft2.lock() {
-        for e in load_key::<Ft8Message>(db, &k("ft2")) {
-            h.push_back(e);
-        }
-    }
     if let Ok(mut h) = histories.wspr.lock() {
         for e in load_key::<WsprMessage>(db, &k("wspr")) {
             h.push_back(e);
         }
     }
-    if let Ok(mut h) = histories.lrpt.lock() {
-        for e in load_key::<LrptImage>(db, &k("lrpt")) {
-            h.push_back(e);
-        }
-    }
     if let Ok(mut h) = histories.wefax.lock() {
         for e in load_key::<WefaxMessage>(db, &k("wefax")) {
             h.push_back(e);
         }
     }
-    histories.recalculate_total_count();
 }
 
 /// Flush `histories` to the database under `rig_id`-prefixed keys and sync.
@@ -183,11 +162,6 @@ pub fn flush_all(db: &mut PickleDb, rig_id: &str, histories: &Arc<DecoderHistori
         drop(h);
         save_key(db, &k("aprs"), &snapshot);
     }
-    if let Ok(h) = histories.hf_aprs.lock() {
-        let snapshot = h.clone();
-        drop(h);
-        save_key(db, &k("hf_aprs"), &snapshot);
-    }
     if let Ok(h) = histories.cw.lock() {
         let snapshot = h.clone();
         drop(h);
@@ -198,26 +172,11 @@ pub fn flush_all(db: &mut PickleDb, rig_id: &str, histories: &Arc<DecoderHistori
         drop(h);
         save_key(db, &k("ft8"), &snapshot);
     }
-    if let Ok(h) = histories.ft4.lock() {
-        let snapshot = h.clone();
-        drop(h);
-        save_key(db, &k("ft4"), &snapshot);
-    }
-    if let Ok(h) = histories.ft2.lock() {
-        let snapshot = h.clone();
-        drop(h);
-        save_key(db, &k("ft2"), &snapshot);
-    }
     if let Ok(h) = histories.wspr.lock() {
         let snapshot = h.clone();
         drop(h);
         save_key(db, &k("wspr"), &snapshot);
     }
-    if let Ok(h) = histories.lrpt.lock() {
-        let snapshot = h.clone();
-        drop(h);
-        save_key(db, &k("lrpt"), &snapshot);
-    }
     if let Ok(h) = histories.wefax.lock() {
         let snapshot = h.clone();
         drop(h);
@@ -226,38 +185,20 @@ pub fn flush_all(db: &mut PickleDb, rig_id: &str, histories: &Arc<DecoderHistori
     let _ = db.dump();
 }
 
-fn flush_all_rigs(db: &Mutex<PickleDb>, rig_histories: &[(String, Arc<DecoderHistories>)]) {
-    let Ok(mut guard) = db.lock() else {
-        tracing::warn!("history database mutex poisoned; skipping periodic flush");
-        return;
-    };
-    for (rig_id, histories) in rig_histories {
-        flush_all(&mut guard, rig_id, histories);
-    }
-}
-
 /// Spawn a Tokio task that flushes all rigs' histories to disk every 60 seconds.
-///
-/// Snapshot cloning, JSON serialization, and disk I/O run on Tokio's blocking
-/// pool so a large history database cannot stall an async runtime worker.
 pub fn spawn_flush_task(
     db: Arc<Mutex<PickleDb>>,
     rig_histories: Vec<(String, Arc<DecoderHistories>)>,
 ) {
     tokio::spawn(async move {
-        let rig_histories = Arc::new(rig_histories);
         let mut interval = tokio::time::interval(Duration::from_secs(60));
         interval.tick().await; // consume the immediate first tick
         loop {
             interval.tick().await;
-            let db = Arc::clone(&db);
-            let rig_histories = Arc::clone(&rig_histories);
-            if let Err(err) = tokio::task::spawn_blocking(move || {
-                flush_all_rigs(&db, rig_histories.as_slice());
-            })
-            .await
-            {
-                tracing::warn!(error = %err, "history flush worker failed");
+            if let Ok(mut guard) = db.lock() {
+                for (rig_id, histories) in &rig_histories {
+                    flush_all(&mut guard, rig_id, histories);
+                }
             }
         }
     });
@@ -361,79 +302,4 @@ mod tests {
         let _ = std::fs::remove_file(&db_file);
         let _ = std::fs::remove_dir(&dir);
     }
-
-    #[test]
-    fn flush_and_load_all_restores_previously_omitted_histories() {
-        let db_file = std::env::temp_dir().join(format!(
-            "trx_history_all_{}_{}.db",
-            std::process::id(),
-            now_unix_ms()
-        ));
-        let mut db = PickleDb::new(
-            &db_file,
-            PickleDbDumpPolicy::DumpUponRequest,
-            SerializationMethod::Json,
-        );
-        let source = DecoderHistories::new();
-        let now = Instant::now();
-
-        source.hf_aprs.lock().unwrap().push_back((
-            now,
-            AprsPacket {
-                rig_id: Some("rig-a".into()),
-                ts_ms: Some(now_unix_ms()),
-                src_call: "TEST".into(),
-                dest_call: "APRS".into(),
-                path: String::new(),
-                info: "history".into(),
-                info_bytes: Vec::new(),
-                packet_type: "position".into(),
-                crc_ok: true,
-                lat: None,
-                lon: None,
-                symbol_table: None,
-                symbol_code: None,
-            },
-        ));
-        for (queue, mode) in [(&source.ft4, "FT4"), (&source.ft2, "FT2")] {
-            queue.lock().unwrap().push_back((
-                now,
-                Ft8Message {
-                    rig_id: Some("rig-a".into()),
-                    ts_ms: now_unix_ms(),
-                    snr_db: -10.0,
-                    dt_s: 0.1,
-                    freq_hz: 1_000.0,
-                    message: mode.into(),
-                },
-            ));
-        }
-        source.lrpt.lock().unwrap().push_back((
-            now,
-            LrptImage {
-                rig_id: Some("rig-a".into()),
-                pass_start_ms: now_unix_ms(),
-                pass_end_ms: now_unix_ms(),
-                mcu_count: 1,
-                path: "/tmp/lrpt.png".into(),
-                ts_ms: Some(now_unix_ms()),
-                satellite: None,
-                channels: None,
-                geo_bounds: None,
-                ground_track: None,
-            },
-        ));
-
-        flush_all(&mut db, "rig-a", &source);
-        let restored = DecoderHistories::new();
-        load_all(&db, "rig-a", &restored);
-
-        assert_eq!(restored.hf_aprs.lock().unwrap().len(), 1);
-        assert_eq!(restored.ft4.lock().unwrap().len(), 1);
-        assert_eq!(restored.ft2.lock().unwrap().len(), 1);
-        assert_eq!(restored.lrpt.lock().unwrap().len(), 1);
-        assert_eq!(restored.estimated_total_count(), 4);
-
-        let _ = std::fs::remove_file(db_file);
-    }
 }

src/trx-server/trx-backend/trx-backend-soapysdr/src/dsp/filter.rs

@@ -251,9 +251,9 @@ fn mul_freq_domain(buf: &mut [FftComplex<f32>], h_freq: &[FftComplex<f32>], scal
         unsafe {
             mul_freq_domain_neon(buf, h_freq, scale);
         }
+        return;
     }
 
-    #[cfg(not(target_arch = "aarch64"))]
     mul_freq_domain_scalar(buf, h_freq, scale);
 }