diff --git a/.gitignore b/.gitignore
index fd6febb2..29b56aec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,6 +14,7 @@
 /shaman-checkout-id-setter
 /stresser
 /job-creator
+/mage
 /addon-packer
 flamenco-manager.yaml
 flamenco-worker.yaml
diff --git a/Makefile b/Makefile
index 224fa4c2..21f8eba8 100644
--- a/Makefile
+++ b/Makefile
@@ -23,10 +23,11 @@ ifeq (${GITHASH},dirty)
 GITHASH := $(shell git rev-parse --short=9 HEAD)
 endif
 
-LDFLAGS := ${LDFLAGS} -X ${PKG}/internal/appinfo.ApplicationVersion=${VERSION} \
-	-X ${PKG}/internal/appinfo.ApplicationGitHash=${GITHASH} \
-	-X ${PKG}/internal/appinfo.ReleaseCycle=${RELEASE_CYCLE}
-BUILD_FLAGS = -ldflags="${LDFLAGS}"
+BUILDTOOL := mage
+ifeq ($(OS),Windows_NT)
+	BUILDTOOL := $(BUILDTOOL).exe
+endif
+BUILDTOOL_PATH := ${PWD}/${BUILDTOOL}
 
 # Package name of the generated Python/JavaScript code for the Flamenco API.
 PY_API_PKG_NAME=flamenco.manager
@@ -48,28 +49,29 @@ export CGO_ENABLED=0
 all: application
 
 # Install generators and build the software.
-with-deps:
-	go install github.com/deepmap/oapi-codegen/cmd/oapi-codegen@v1.9.0
-	go install github.com/golang/mock/mockgen@v1.6.0
+with-deps: buildtool
+	"${BUILDTOOL_PATH}" installGenerators
 	$(MAKE) application
 
-vet:
-	go vet ./...
-	go run golang.org/x/vuln/cmd/govulncheck@latest ./...
+vet: buildtool
+	"${BUILDTOOL_PATH}" vet
 
-application: webapp flamenco-manager flamenco-worker
+application: flamenco-manager flamenco-worker
 
-flamenco-manager:
-	$(MAKE) webapp-static
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/flamenco-manager
+flamenco-manager: buildtool
+	"${BUILDTOOL_PATH}" flamencoManager
 
-.PHONY: flamenco-manager-without-webapp
-flamenco-manager-without-webapp:
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/flamenco-manager
+flamenco-manager-without-webapp: buildtool
+	"${BUILDTOOL_PATH}" flamencoManagerWithoutWebapp
 
-flamenco-worker:
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/flamenco-worker
+flamenco-worker: buildtool
+	"${BUILDTOOL_PATH}" flamencoWorker
 
+# Builds the buildtool itself, for faster rebuilds of Skyfill.
+buildtool: ${BUILDTOOL}
+${BUILDTOOL}: mage.go $(wildcard magefiles/*.go) go.mod
+	@echo "Building build tool $@"
+	@go run mage.go -compile "${BUILDTOOL_PATH}"
 
 # NOTE: these database migration commands are just for reference / debugging /
 # development purposes. Flamenco Manager and Worker each perform their own
@@ -85,118 +87,20 @@ db-migrate-down:
 	goose -dir ./internal/manager/persistence/migrations/ sqlite3 flamenco-manager.sqlite down
 .PHONY: db-migrate-status db-migrate-up db-migrate-down
 
-.PHONY: stresser
-stresser:
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/stresser
+webapp-static: buildtool
+	"${BUILDTOOL_PATH}" webappStatic
 
-.PHONY: job-creator
-job-creator:
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/job-creator
+generate: buildtool
+	"${BUILDTOOL_PATH}" generate
 
-flamenco-addon.zip: addon-packer
-	./addon-packer -filename ./flamenco-addon.zip
+generate-go: buildtool
+	"${BUILDTOOL_PATH}" generateGo
 
-addon-packer: cmd/addon-packer/addon-packer.go
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/addon-packer
+generate-py: buildtool
+	"${BUILDTOOL_PATH}" generatePy
 
-flamenco-manager_race:
-	CGO_ENABLED=1 go build -race -o $@ -v ${BUILD_FLAGS} ${PKG}/cmd/flamenco-manager
-
-flamenco-worker_race:
-	CGO_ENABLED=1 go build -race -o $@ -v ${BUILD_FLAGS} ${PKG}/cmd/flamenco-worker
-
-.PHONY: shaman-checkout-id-setter
-shaman-checkout-id-setter:
-	go build -v ${BUILD_FLAGS} ${PKG}/cmd/shaman-checkout-id-setter
-
-webapp:
-	yarn --cwd web/app install
-
-webapp-static: addon-packer
-	$(MAKE) clean-webapp-static
-# When changing the base URL, also update the line
-# e.GET("/app/*", echo.WrapHandler(webAppHandler))
-# in `cmd/flamenco-manager/main.go`
-	MSYS2_ARG_CONV_EXCL="*" yarn --cwd web/app build --outDir ../static --base=/app/ --logLevel warn
-# yarn --cwd web/app build --outDir ../static --base=/app/ --minify false
-	./addon-packer -filename ${WEB_STATIC}/flamenco-addon.zip
-	@echo "Web app has been installed into ${WEB_STATIC}"
-
-generate:
-	$(MAKE) generate-go
-	$(MAKE) generate-py
-	$(MAKE) generate-js
-
-generate-go:
-	go generate ./pkg/api/...
-	go generate ./internal/...
-# The generators always produce UNIX line-ends. This creates false file
-# modifications with Git. Convert them to DOS line-ends to avoid this.
-ifeq ($(OS),Windows_NT)
-	git status --porcelain | grep '^ M .*.gen.go' | cut -d' ' -f3 | xargs unix2dos --keepdate
-endif
-
-generate-py:
-# The generator doesn't consistently overwrite existing files, nor does it
-# remove no-longer-generated files.
-	rm -rf addon/flamenco/manager
-
-# See https://openapi-generator.tech/docs/generators/python for the options.
-	java -jar addon/openapi-generator-cli.jar \
-		generate \
-		-i pkg/api/flamenco-openapi.yaml \
-		-g python \
-		-o addon/ \
-		--package-name "${PY_API_PKG_NAME}" \
-		--http-user-agent "Flamenco/${VERSION} (Blender add-on)" \
-		-p generateSourceCodeOnly=true \
-		-p projectName=Flamenco \
-		-p packageVersion="${VERSION}" > .openapi-generator-py.log
-
-# The generator outputs files so that we can write our own tests. We don't,
-# though, so it's better to just remove those placeholders.
-	rm -rf addon/flamenco/manager/test
-# The generators always produce UNIX line-ends. This creates false file
-# modifications with Git. Convert them to DOS line-ends to avoid this.
-ifeq ($(OS),Windows_NT)
-	git status --porcelain | grep '^ M addon/flamenco/manager' | cut -d' ' -f3 | xargs unix2dos --keepdate
-endif
-
-generate-js:
-# The generator doesn't consistently overwrite existing files, nor does it
-# remove no-longer-generated files.
-	rm -rf web/app/src/manager-api
-	rm -rf web/_tmp-manager-api-javascript
-
-# See https://openapi-generator.tech/docs/generators/javascript for the options.
-# Version '0.0.0' is used as NPM doesn't like Git hashes as versions.
-#
-# -p modelPropertyNaming=original is needed because otherwise the generator will
-# use original naming internally, but generate docs with camelCase, and then
-# things don't work properly.
-	java -jar addon/openapi-generator-cli.jar \
-		generate \
-		-i pkg/api/flamenco-openapi.yaml \
-		-g javascript \
-		-o web/_tmp-manager-api-javascript \
-		--http-user-agent "Flamenco/${VERSION} / webbrowser" \
-		-p projectName=flamenco-manager \
-		-p projectVersion="0.0.0" \
-		-p apiPackage="${JS_API_PKG_NAME}" \
-		-p disallowAdditionalPropertiesIfNotPresent=false \
-		-p usePromises=true \
-		-p moduleName=flamencoManager > .openapi-generator-js.log
-
-# Cherry-pick the generated sources, and remove everything else.
-# The only relevant bit is that the generated code depends on `superagent`,
-# which is listed in our `.
-	mv web/_tmp-manager-api-javascript/src web/app/src/manager-api
-	rm -rf web/_tmp-manager-api-javascript
-# The generators always produce UNIX line-ends. This creates false file
-# modifications with Git. Convert them to DOS line-ends to avoid this.
-ifeq ($(OS),Windows_NT)
-	git status --porcelain | grep '^ M web/app/src/manager-api' | cut -d' ' -f3 | xargs unix2dos --keepdate
-endif
+generate-js: buildtool
+	"${BUILDTOOL_PATH}" generateJS
 
 .PHONY:
 update-version:
@@ -213,6 +117,7 @@ update-version:
 		addon/flamenco/__init__.py \
 		addon/flamenco/manager \
 		addon/flamenco/manager_README.md \
+		magefiles/version.go \
 		web/app/src/manager-api \
 		web/project-website/data/flamenco.yaml
 	@echo 'git tag -a -m "Tagged version ${VERSION}" v${VERSION}'
@@ -237,28 +142,17 @@ swagger-ui:
 	@echo
 	@echo 'Now update pkg/api/static/swagger-ui/index.html to have url: "/api/openapi3.json",'
 
-test:
-# Ensure the web-static directory exists, so that `web/web_app.go` can embed something.
-	mkdir -p ${WEB_STATIC}
-	go test -short -failfast ./...
+test: buildtool
+	"${BUILDTOOL_PATH}" test
 
-clean:
-	@go clean -i -x
-	rm -f flamenco*-v* flamenco-manager flamenco-worker *.exe flamenco-*_race addon-packer stresser
-	$(MAKE) clean-webapp-static
-
-clean-webapp-static:
-# Start with `./` to avoid horrors when WEB_STATIC is absolute (like / or /home/yourname).
-	rm -rf ./${WEB_STATIC}
-# Make sure there is at least something to embed by Go, or it may cause some errors.
-	mkdir -p ./${WEB_STATIC}
-	touch ${WEB_STATIC}/emptyfile
+clean: buildtool
+	"${BUILDTOOL_PATH}" clean
 
 devserver-website:
 	go run ${HUGO_PKG} -s web/project-website serve
 
-devserver-webapp:
-	yarn --cwd web/app run dev --host
+devserver-webapp: buildtool
+	"${BUILDTOOL_PATH}" devServerWebapp
 
 deploy-website:
 	$(MAKE) -s check-environment
@@ -417,4 +311,4 @@ publish-release-packages:
 		${RELEASE_PACKAGE_LINUX} ${RELEASE_PACKAGE_DARWIN} ${RELEASE_PACKAGE_DARWIN_ARM64} ${RELEASE_PACKAGE_WINDOWS} ${RELEASE_PACKAGE_SHAFILE} \
 		${WEBSERVER_SSH}:${WEBSERVER_ROOT}/downloads/
 
-.PHONY: application version flamenco-manager flamenco-worker flamenco-manager_race flamenco-worker_race webapp webapp-static generate generate-go generate-py with-deps swagger-ui list-embedded test clean clean-webapp-static
+.PHONY: application version flamenco-manager flamenco-worker flamenco-manager_race flamenco-worker_race webapp webapp-static generate generate-go generate-py with-deps swagger-ui list-embedded test clean flamenco-manager-without-webapp
diff --git a/cmd/addon-packer/addon-packer.go b/cmd/addon-packer/addon-packer.go
deleted file mode 100644
index 5b842ae3..00000000
--- a/cmd/addon-packer/addon-packer.go
+++ /dev/null
@@ -1,167 +0,0 @@
-package main
-
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-import (
-	"archive/zip"
-	"compress/flate"
-	"flag"
-	"fmt"
-	"io"
-	"io/fs"
-	"os"
-	"path/filepath"
-	"strings"
-	"time"
-
-	"github.com/mattn/go-colorable"
-	"github.com/rs/zerolog"
-	"github.com/rs/zerolog/log"
-
-	"projects.blender.org/studio/flamenco/internal/appinfo"
-)
-
-var cliArgs struct {
-	// Do-and-quit flags.
-	version bool
-
-	// Logging level flags.
-	quiet, debug, trace bool
-
-	filename string
-}
-
-func main() {
-	parseCliArgs()
-	if cliArgs.version {
-		fmt.Println(appinfo.ApplicationVersion)
-		return
-	}
-
-	output := zerolog.ConsoleWriter{Out: colorable.NewColorableStdout(), TimeFormat: time.RFC3339}
-	log.Logger = log.Output(output)
-	configLogLevel()
-
-	outfile, err := filepath.Abs(cliArgs.filename)
-	if err != nil {
-		log.Fatal().Err(err).Str("filepath", cliArgs.filename).Msg("unable make output file path absolute")
-	}
-
-	// Open the output file.
-	logger := log.With().Str("zipname", outfile).Logger()
-	logger.Info().Msg("creating ZIP file")
-	zipFile, err := os.Create(outfile)
-	if err != nil {
-		logger.Fatal().Err(err).Msg("error creating file")
-	}
-	defer zipFile.Close()
-	zipWriter := zip.NewWriter(zipFile)
-
-	zipWriter.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
-		return flate.NewWriter(out, flate.BestCompression)
-	})
-
-	// CD to the addon dir to get the relative paths nice.
-	if err := os.Chdir("addon"); err != nil {
-		log.Fatal().Err(err).Msg("unable to cd to addon")
-	}
-
-	basePath, err := os.Getwd()
-	if err != nil {
-		logger.Fatal().Err(err).Msg("error getting current working directory")
-	}
-
-	// Copy all the files into the ZIP.
-	addToZip := func(path string, d fs.DirEntry, err error) error {
-		sublog := log.With().Str("path", path).Logger()
-
-		if err != nil {
-			sublog.Error().Err(err).Msg("error received from filepath.WalkDir, aborting")
-			return err
-		}
-
-		// Construct the path inside the ZIP file.
-		relpath, err := filepath.Rel(basePath, path)
-		if err != nil {
-			return fmt.Errorf("making %s relative to %s: %w", path, basePath, err)
-		}
-
-		if d.IsDir() {
-			switch {
-			case filepath.Base(path) == "__pycache__":
-				return fs.SkipDir
-			case relpath == filepath.Join("flamenco", "manager", "docs"):
-				return fs.SkipDir
-			case strings.HasPrefix(filepath.Base(path), "."):
-				// Skip directories like .mypy_cache, etc.
-				return fs.SkipDir
-			default:
-				// Just recurse into this directory.
-				return nil
-			}
-		}
-
-		sublog.Debug().Str("path", relpath).Msg("adding file to ZIP")
-
-		// Read the file's contents. These are just Python files and maybe a Wheel,
-		// nothing huge.
-		contents, err := os.ReadFile(path)
-		if err != nil {
-			return fmt.Errorf("reading %s: %w", path, err)
-		}
-
-		// Write into the ZIP file.
-		fileInZip, err := zipWriter.Create(relpath)
-		if err != nil {
-			return fmt.Errorf("creating %s in ZIP: %w", relpath, err)
-		}
-		_, err = fileInZip.Write(contents)
-		if err != nil {
-			return fmt.Errorf("writing to %s in ZIP: %w", relpath, err)
-		}
-
-		return nil
-	}
-
-	logger.Debug().Str("cwd", basePath).Msg("walking directory")
-
-	if err := filepath.WalkDir(filepath.Join(basePath, "flamenco"), addToZip); err != nil {
-		logger.Fatal().Err(err).Msg("error filling ZIP file")
-	}
-
-	comment := fmt.Sprintf("%s add-on for Blender, version %s",
-		appinfo.ApplicationName,
-		appinfo.ApplicationVersion,
-	)
-	if err := zipWriter.SetComment(comment); err != nil {
-		logger.Fatal().Err(err).Msg("error setting ZIP comment")
-	}
-
-	if err := zipWriter.Close(); err != nil {
-		logger.Fatal().Err(err).Msg("error closing ZIP file")
-	}
-}
-
-func parseCliArgs() {
-	flag.BoolVar(&cliArgs.version, "version", false, "Shows the application version, then exits.")
-	flag.BoolVar(&cliArgs.quiet, "quiet", false, "Only log warning-level and worse.")
-	flag.BoolVar(&cliArgs.debug, "debug", false, "Enable debug-level logging.")
-	flag.BoolVar(&cliArgs.trace, "trace", false, "Enable trace-level logging.")
-	flag.StringVar(&cliArgs.filename, "filename", "web/static/flamenco-addon.zip", "Filename to save the add-on to.")
-	flag.Parse()
-}
-
-func configLogLevel() {
-	var logLevel zerolog.Level
-	switch {
-	case cliArgs.trace:
-		logLevel = zerolog.TraceLevel
-	case cliArgs.debug:
-		logLevel = zerolog.DebugLevel
-	case cliArgs.quiet:
-		logLevel = zerolog.WarnLevel
-	default:
-		logLevel = zerolog.InfoLevel
-	}
-	zerolog.SetGlobalLevel(logLevel)
-}
diff --git a/cmd/update-version/magefiles.go b/cmd/update-version/magefiles.go
new file mode 100644
index 00000000..8171e498
--- /dev/null
+++ b/cmd/update-version/magefiles.go
@@ -0,0 +1,88 @@
+package main
+
+import (
+	"fmt"
+	"go/ast"
+	"go/format"
+	"go/parser"
+	"go/token"
+	"os"
+	"path/filepath"
+
+	"github.com/rs/zerolog/log"
+)
+
+const mageFile = "magefiles/version.go"
+
+// updateMagefiles changes the version number in the Mage files.
+// Returns whether the file actually changed.
+func updateMagefiles() bool {
+	logger := log.With().Str("filename", mageFile).Logger()
+
+	// Parse the mage file as AST.
+	fset := token.NewFileSet()
+	astFile, err := parser.ParseFile(fset, mageFile, nil, parser.SkipObjectResolution|parser.ParseComments)
+	if err != nil {
+		logger.Fatal().Err(err).Msgf("could not update mage version file")
+		return false
+	}
+
+	// Perform replacements on the AST.
+	replacements := map[string]string{
+		"version":      cliArgs.newVersion,
+		"releaseCycle": releaseCycle,
+	}
+
+	var (
+		lastIdent       *ast.Ident // Last-seen identifier.
+		anyFieldChanged bool
+	)
+
+	ast.Inspect(astFile, func(node ast.Node) bool {
+		switch x := node.(type) {
+		case *ast.Ident:
+			lastIdent = x
+
+		case *ast.BasicLit:
+			replacement, ok := replacements[lastIdent.Name]
+			if ok {
+				newValue := fmt.Sprintf("%q", replacement)
+				if x.Value != newValue {
+					logger.Info().
+						Str("old", x.Value).
+						Str("new", newValue).
+						Msg("updating mage version file")
+					x.Value = newValue
+					anyFieldChanged = true
+				}
+			}
+		}
+
+		return true
+	})
+
+	// Open a temporary file for writing.
+	mageDir := filepath.Dir(mageFile)
+	writer, err := os.CreateTemp(mageDir, filepath.Base(mageFile)+"*.go")
+	if err != nil {
+		log.Fatal().Err(err).Msgf("cannot create file in %s", mageDir)
+	}
+	defer writer.Close()
+
+	// Write the altered AST to the temp file.
+	if err := format.Node(writer, fset, astFile); err != nil {
+		log.Fatal().Err(err).Msgf("cannot write updated version of %s to %s", mageFile, writer.Name())
+	}
+
+	// Close the file.
+	if err := writer.Close(); err != nil {
+		log.Fatal().Err(err).Msgf("cannot close %s", writer.Name())
+	}
+
+	// Overwrite the original mage file with the temp file.
+	if err := os.Rename(writer.Name(), mageFile); err != nil {
+		log.Fatal().Err(err).Msgf("cannot rename %s to %s", writer.Name(), mageFile)
+	}
+
+	return anyFieldChanged
+}
diff --git a/cmd/update-version/main.go b/cmd/update-version/main.go
index 01de5567..70f9f0fe 100644
--- a/cmd/update-version/main.go
+++ b/cmd/update-version/main.go
@@ -6,6 +6,7 @@ import (
 	"flag"
 	"fmt"
 	"os"
+	"strings"
 	"time"
 
 	"github.com/mattn/go-colorable"
@@ -13,13 +14,18 @@ import (
 	"github.com/rs/zerolog/log"
 )
 
-var cliArgs struct {
-	// Logging level flags.
-	quiet, debug, trace bool
+// Global variables used by the updateXXX() functions.
+var (
+	cliArgs struct {
+		// Logging level flags.
+		quiet, debug, trace bool
 
-	newVersion     string
-	updateMakefile bool
-}
+		newVersion     string
+		updateMakefile bool
+	}
+
+	releaseCycle string
+)
 
 func main() {
 	parseCliArgs()
@@ -29,11 +35,23 @@ func main() {
 
 	log.Info().Str("version", cliArgs.newVersion).Msg("updating Flamenco version")
 
+	switch {
+	case strings.Contains(cliArgs.newVersion, "alpha"), strings.Contains(cliArgs.newVersion, "dev"):
+		releaseCycle = "alpha"
+	case strings.Contains(cliArgs.newVersion, "beta"):
+		releaseCycle = "beta"
+	case strings.Contains(cliArgs.newVersion, "rc"):
+		releaseCycle = "rc"
+	default:
+		releaseCycle = "release"
+	}
+
 	var anyFileWasChanged bool
 	if cliArgs.updateMakefile {
 		anyFileWasChanged = updateMakefile() || anyFileWasChanged
 	}
 	anyFileWasChanged = updateAddon() || anyFileWasChanged
+	anyFileWasChanged = updateMagefiles() || anyFileWasChanged
 
 	if !anyFileWasChanged {
 		log.Warn().Msg("nothing changed")
diff --git a/go.mod b/go.mod
index cd1c7e2f..7ac3d647 100644
--- a/go.mod
+++ b/go.mod
@@ -19,22 +19,27 @@ require (
 	github.com/google/uuid v1.5.0
 	github.com/graarh/golang-socketio v0.0.0-20170510162725-2c44953b9b5f
 	github.com/labstack/echo/v4 v4.9.1
+	github.com/magefile/mage v1.15.0
 	github.com/mattn/go-colorable v0.1.12
-	github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8
+	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c
 	github.com/pressly/goose/v3 v3.15.1
 	github.com/rs/zerolog v1.26.1
 	github.com/stretchr/testify v1.8.4
 	github.com/zcalusic/sysinfo v1.0.1
 	github.com/ziflex/lecho/v3 v3.1.0
-	golang.org/x/crypto v0.23.0
+	golang.org/x/crypto v0.25.0
 	golang.org/x/image v0.18.0
-	golang.org/x/net v0.25.0
-	golang.org/x/sys v0.20.0
+	golang.org/x/net v0.27.0
+	golang.org/x/sync v0.7.0
+	golang.org/x/sys v0.22.0
+	golang.org/x/vuln v1.1.3
 	gopkg.in/yaml.v2 v2.4.0
+	honnef.co/go/tools v0.5.1
 	modernc.org/sqlite v1.28.0
 )
 
 require (
+	github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dlclark/regexp2 v1.7.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
@@ -54,11 +59,12 @@ require (
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.1 // indirect
-	golang.org/x/mod v0.17.0 // indirect
-	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/exp/typeparams v0.0.0-20231108232855-2478ac86f678 // indirect
+	golang.org/x/mod v0.19.0 // indirect
+	golang.org/x/telemetry v0.0.0-20240522233618-39ace7a40ae7 // indirect
 	golang.org/x/text v0.16.0 // indirect
 	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
-	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
+	golang.org/x/tools v0.23.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	lukechampine.com/uint128 v1.3.0 // indirect
 	modernc.org/cc/v3 v3.41.0 // indirect
@@ -70,3 +76,7 @@ require (
 	modernc.org/strutil v1.2.0 // indirect
 	modernc.org/token v1.1.0 // indirect
 )
+
+// Replace staticcheck release with a specific revision of their `main` branch,
+// so that it includes my PR https://github.com/dominikh/go-tools/pull/1597
+replace honnef.co/go/tools v0.5.1 => honnef.co/go/tools v0.0.0-20240920144234-9f4b51e3ab5a
diff --git a/go.sum b/go.sum
index efbc1c53..2a7c1825 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,5 @@
+github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c h1:pxW6RcqyfI9/kWtOwnv/G+AzdKuy2ZrqINhenH4HyNs=
+github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/adrg/xdg v0.4.0 h1:RzRqFcjH4nE5C6oTAxhBtoE2IRyjBSa62SCbyPidvls=
 github.com/adrg/xdg v0.4.0/go.mod h1:N6ag73EX4wyxeaoeHctc1mas01KZgsj5tYiAIwqJE/E=
 github.com/alessio/shellescape v1.4.2 h1:MHPfaU+ddJ0/bYWpgIeUnQUqKrlJ1S7BfEYPM4uEoM0=
@@ -115,6 +117,8 @@ github.com/lestrrat-go/httpcc v1.0.0/go.mod h1:tGS/u00Vh5N6FHNkExqGGNId8e0Big+++
 github.com/lestrrat-go/iter v1.0.1/go.mod h1:zIdgO1mRKhn8l9vrZJZz9TUMMFbQbLeTsbqPDrJ/OJc=
 github.com/lestrrat-go/jwx v1.2.7/go.mod h1:bw24IXWbavc0R2RsOtpXL7RtMyP589yZ1+L7kd09ZGA=
 github.com/lestrrat-go/option v1.0.0/go.mod h1:5ZHFbivi4xwXxhxY9XHDe2FHo6/Z7WWmtT7T5nBBp3I=
+github.com/magefile/mage v1.15.0 h1:BvGheCMAsG3bWUDbZ8AyXXpCNwU9u5CB6sM+HNb9HYg=
+github.com/magefile/mage v1.15.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.7.0 h1:aizVhC/NAAcKWb+5QsU1iNOZb4Yws5UO2I+aIprQITM=
@@ -138,8 +142,8 @@ github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJ
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 h1:KoWmjvw+nsYOo29YJK9vDA65RGE3NrOnUtO7a+RF9HU=
-github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8/go.mod h1:HKlIX3XHQyzLZPlr7++PzdhaXEj94dEiJgZDTsxEqUI=
+github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c h1:+mdjkGKdHQG3305AYmdv1U2eRNDiU2ErMBj1gwrq8eQ=
+github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c/go.mod h1:7rwL4CYBLnjLxUqIJNnCWiEdr3bn6IUYi15bNlnbCCU=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -191,8 +195,10 @@ golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211215165025-cf75a172585e/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
-golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/crypto v0.25.0 h1:ypSNr+bnYL2YhwoMt2zPxHFmbAN1KZs/njMG3hxUp30=
+golang.org/x/crypto v0.25.0/go.mod h1:T+wALwcMOSE0kXgUAnPAHqTLW+XHgcELELW8VaDgm/M=
+golang.org/x/exp/typeparams v0.0.0-20231108232855-2478ac86f678 h1:1P7xPZEwZMoBoz0Yze5Nx2/4pxj6nw9ZqHWXqP0iRgQ=
+golang.org/x/exp/typeparams v0.0.0-20231108232855-2478ac86f678/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=
 golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/image v0.18.0 h1:jGzIakQa/ZXI1I0Fxvaa9W7yP25TqT6cHIHn+6CqvSQ=
 golang.org/x/image v0.18.0/go.mod h1:4yyo5vMFQjVjUcVk4jEQcU9MGy/rulF5WvUILseCM2E=
@@ -200,8 +206,8 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
-golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8=
+golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
@@ -211,8 +217,8 @@ golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96b
 golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210913180222-943fd674d43e/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
-golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
+golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
+golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -235,7 +241,6 @@ golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210616045830-e2b7044e8c71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -247,9 +252,12 @@ golang.org/x/sys v0.0.0-20211103235746-7861aae1554b/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
+golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/telemetry v0.0.0-20240522233618-39ace7a40ae7 h1:FemxDzfMUcK2f3YY4H+05K9CDzbSVr2+q/JKN45pey0=
+golang.org/x/telemetry v0.0.0-20240522233618-39ace7a40ae7/go.mod h1:pRgIJT+bRLFKnoM1ldnzKoxTIn14Yxz928LQRYYgIN0=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -271,8 +279,10 @@ golang.org/x/tools v0.0.0-20210114065538-d78b04bdf963/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d h1:vU5i/LfpvrRCpgM/VPfJLg5KjxD3E+hfT1SH+d9zLwg=
-golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
+golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg=
+golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI=
+golang.org/x/vuln v1.1.3 h1:NPGnvPOTgnjBc9HTaUx+nj+EaUYxl5SJOWqaDYGaFYw=
+golang.org/x/vuln v1.1.3/go.mod h1:7Le6Fadm5FOqE9C926BCD0g12NWyhg7cxV4BwcPFuNY=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -294,6 +304,8 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20240920144234-9f4b51e3ab5a h1:P0jdAtRz/UFVIXrgf9EdWApQJnbQrmsUwyARz4FF+D8=
+honnef.co/go/tools v0.0.0-20240920144234-9f4b51e3ab5a/go.mod h1:e9irvo83WDG9/irijV44wr3tbhcFeRnfpVlRqVwpzMs=
 lukechampine.com/uint128 v1.3.0 h1:cDdUVfRwDUDovz610ABgFD17nXD4/uDgVHl2sC3+sbo=
 lukechampine.com/uint128 v1.3.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
 modernc.org/cc/v3 v3.41.0 h1:QoR1Sn3YWlmA1T4vLaKZfawdVtSiGx8H+cEojbC7v1Q=
diff --git a/mage.go b/mage.go
new file mode 100644
index 00000000..6a3b958e
--- /dev/null
+++ b/mage.go
@@ -0,0 +1,11 @@
+//go:build ignore
+
+package main
+
+import (
+	"os"
+
+	"github.com/magefile/mage/mage"
+)
+
+func main() { os.Exit(mage.Main()) }
diff --git a/magefiles/addonpacker.go b/magefiles/addonpacker.go
new file mode 100644
index 00000000..ee78417e
--- /dev/null
+++ b/magefiles/addonpacker.go
@@ -0,0 +1,108 @@
+//go:build mage
+
+package main
+
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import (
+	"archive/zip"
+	"compress/flate"
+	"fmt"
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"projects.blender.org/studio/flamenco/internal/appinfo"
+)
+
+func packAddon(filename string) error {
+	outfile, err := filepath.Abs(filename)
+	if err != nil {
+		return fmt.Errorf("unable make output file path absolute: %w", err)
+	}
+
+	// Open the output file.
+	zipFile, err := os.Create(outfile)
+	if err != nil {
+		return fmt.Errorf("error creating file %s: %w", outfile, err)
+	}
+	defer zipFile.Close()
+
+	zipWriter := zip.NewWriter(zipFile)
+	defer zipWriter.Close()
+
+	zipWriter.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
+		return flate.NewWriter(out, flate.BestCompression)
+	})
+
+	basePath, err := filepath.Abs("./addon") //  os.Getwd()
+	if err != nil {
+		return fmt.Errorf("error getting current working directory: %w", err)
+	}
+
+	// Copy all the files into the ZIP.
+	addToZip := func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return fmt.Errorf("error received from filepath.WalkDir: %w", err)
+		}
+
+		// Construct the path inside the ZIP file.
+		relpath, err := filepath.Rel(basePath, path)
+		if err != nil {
+			return fmt.Errorf("making %s relative to %s: %w", path, basePath, err)
+		}
+
+		if d.IsDir() {
+			switch {
+			case filepath.Base(path) == "__pycache__":
+				return fs.SkipDir
+			case relpath == filepath.Join("flamenco", "manager", "docs"):
+				return fs.SkipDir
+			case strings.HasPrefix(filepath.Base(path), "."):
+				// Skip directories like .mypy_cache, etc.
+				return fs.SkipDir
+			default:
+				// Just recurse into this directory.
+				return nil
+			}
+		}
+
+		// Read the file's contents. These are just Python files and maybe a Wheel,
+		// nothing huge.
+		contents, err := os.ReadFile(path)
+		if err != nil {
+			return fmt.Errorf("reading %s: %w", path, err)
+		}
+
+		// Write into the ZIP file.
+		fileInZip, err := zipWriter.Create(relpath)
+		if err != nil {
+			return fmt.Errorf("creating %s in ZIP: %w", relpath, err)
+		}
+		_, err = fileInZip.Write(contents)
+		if err != nil {
+			return fmt.Errorf("writing to %s in ZIP: %w", relpath, err)
+		}
+
+		return nil
+	}
+
+	if err := filepath.WalkDir(filepath.Join(basePath, "flamenco"), addToZip); err != nil {
+		return fmt.Errorf("error filling ZIP file: %w", err)
+	}
+
+	comment := fmt.Sprintf("%s add-on for Blender, version %s",
+		appinfo.ApplicationName,
+		appinfo.ApplicationVersion,
+	)
+	if err := zipWriter.SetComment(comment); err != nil {
+		return fmt.Errorf("error setting ZIP comment: %w", err)
+	}
+
+	if err := zipWriter.Close(); err != nil {
+		return fmt.Errorf("error closing ZIP file: %w", err)
+	}
+	return nil
+}
diff --git a/magefiles/build.go b/magefiles/build.go
new file mode 100644
index 00000000..63438d47
--- /dev/null
+++ b/magefiles/build.go
@@ -0,0 +1,134 @@
+//go:build mage
+
+package main
+
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/magefile/mage/mg"
+	"github.com/magefile/mage/sh"
+	"github.com/magefile/mage/target"
+)
+
+const (
+	goPkg = "projects.blender.org/studio/flamenco"
+)
+
+var (
+	// The directory that will contain the built webapp files, and some other
+	// files that will be served as static files by the Flamenco Manager web
+	// server.
+	webStatic = filepath.Join("web", "static")
+)
+
+// Build Flamenco Manager and Flamenco Worker, including the webapp and the add-on
+func Build() {
+	mg.Deps(FlamencoManager, FlamencoWorker)
+}
+
+// Build Flamenco Manager with the webapp and add-on ZIP embedded
+func FlamencoManager() error {
+	mg.Deps(WebappStatic)
+	mg.Deps(flamencoManager)
+	return nil
+}
+
+// Only build the Flamenco Manager executable, do not rebuild the webapp
+func FlamencoManagerWithoutWebapp() error {
+	mg.Deps(flamencoManager)
+	return nil
+}
+
+func flamencoManager() error {
+	return build("./cmd/flamenco-manager")
+}
+
+// Build the Flamenco Worker executable
+func FlamencoWorker() error {
+	return build("./cmd/flamenco-worker")
+}
+
+// Build the webapp as static files that can be served
+func WebappStatic() error {
+	runInstall, err := target.Dir("web/app/node_modules")
+	if err != nil {
+		return err
+	}
+	if runInstall {
+		mg.SerialDeps(WebappInstallDeps)
+	}
+	if err := cleanWebappStatic(); err != nil {
+		return err
+	}
+
+	env := map[string]string{
+		"MSYS2_ARG_CONV_EXCL": "*",
+	}
+
+	// When changing the base URL, also update the line
+	// e.GET("/app/*", echo.WrapHandler(webAppHandler))
+	// in `cmd/flamenco-manager/main.go`
+	err = sh.RunWithV(env,
+		"yarn",
+		"--cwd", "web/app",
+		"build",
+		"--outDir", "../static",
+		"--base=/app/",
+		"--logLevel", "warn",
+		// For debugging you can add:
+		// "--minify", "false",
+	)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Web app has been installed into %s\n", webStatic)
+
+	// Build the add-on ZIP as it's part of the static web files.
+	zipPath := filepath.Join(webStatic, "flamenco3-addon.zip")
+	return packAddon(zipPath)
+}
+
+// Use Yarn to install the webapp's NodeJS dependencies
+func WebappInstallDeps() error {
+	env := map[string]string{
+		"MSYS2_ARG_CONV_EXCL": "*",
+	}
+	return sh.RunWithV(env,
+		"yarn",
+		"--cwd", "web/app",
+		"install",
+	)
+}
+
+func build(exePackage string) error {
+	flags, err := buildFlags()
+	if err != nil {
+		return err
+	}
+
+	args := []string{"build", "-v"}
+	args = append(args, flags...)
+	args = append(args, exePackage)
+	return sh.RunV(mg.GoCmd(), args...)
+}
+
+func buildFlags() ([]string, error) {
+	hash, err := gitHash()
+	if err != nil {
+		return nil, err
+	}
+
+	ldflags := "" +
+		fmt.Sprintf(" -X %s/internal/appinfo.ApplicationVersion=%s", goPkg, version) +
+		fmt.Sprintf(" -X %s/internal/appinfo.ApplicationGitHash=%s", goPkg, hash) +
+		fmt.Sprintf(" -X %s/internal/appinfo.ReleaseCycle=%s", goPkg, releaseCycle)
+
+	flags := []string{
+		"-ldflags=" + ldflags,
+	}
+	return flags, nil
+}
diff --git a/magefiles/check.go b/magefiles/check.go
new file mode 100644
index 00000000..4e179653
--- /dev/null
+++ b/magefiles/check.go
@@ -0,0 +1,61 @@
+//go:build mage
+
+package main
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/magefile/mage/mg"
+	"github.com/magefile/mage/sh"
+	"golang.org/x/vuln/scan"
+	"honnef.co/go/tools/lintcmd"
+	lintcmdversion "honnef.co/go/tools/lintcmd/version"
+	"honnef.co/go/tools/simple"
+	"honnef.co/go/tools/staticcheck"
+	"honnef.co/go/tools/stylecheck"
+	"honnef.co/go/tools/unused"
+)
+
+// Run unit tests, check for vulnerabilities, and run the linter
+func Check(ctx context.Context) {
+	mg.CtxDeps(ctx, Test, Govulncheck, Staticcheck, Vet)
+}
+
+// Run unit tests
+func Test(ctx context.Context) error {
+	return sh.RunV(mg.GoCmd(), "test", "-short", "-failfast", "./...")
+}
+
+// Check for known vulnerabilities.
+func Govulncheck(ctx context.Context) error {
+	cmd := scan.Command(ctx, "./...")
+	if err := cmd.Start(); err != nil {
+		return err
+	}
+	return cmd.Wait()
+}
+
+// Analyse the source code.
+func Staticcheck() error {
+	cmd := lintcmd.NewCommand("staticcheck")
+	cmd.SetVersion(lintcmdversion.Version, lintcmdversion.MachineVersion)
+	cmd.ParseFlags([]string{"./..."})
+	cmd.AddAnalyzers(simple.Analyzers...)
+	cmd.AddAnalyzers(staticcheck.Analyzers...)
+	cmd.AddAnalyzers(stylecheck.Analyzers...)
+	cmd.AddAnalyzers(unused.Analyzer)
+
+	exitCode := cmd.Execute()
+	if exitCode != 0 {
+		return errors.New("staticcheck failed")
+	}
+	fmt.Println("staticcheck ok")
+	return nil
+}
+
+// Run `go vet`
+func Vet() error {
+	return sh.RunV(mg.GoCmd(), "vet", "./...")
+}
diff --git a/magefiles/clean.go b/magefiles/clean.go
new file mode 100644
index 00000000..659aaa6a
--- /dev/null
+++ b/magefiles/clean.go
@@ -0,0 +1,64 @@
+//go:build mage
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/magefile/mage/sh"
+)
+
+// Remove executables and other build output
+func Clean() error {
+	if err := cleanWebappStatic(); err != nil {
+		return err
+	}
+
+	if err := sh.Run("go", "clean"); err != nil {
+		return err
+	}
+
+	if err := rm(
+		"flamenco-manager", "flamenco-manager.exe",
+		"flamenco-manager_race", "flamenco-manager_race.exe",
+		"flamenco-worker", "flamenco-worker.exe",
+		"flamenco-worker_race", "flamenco-worker_race.exe",
+	); err != nil {
+		return err
+	}
+	return nil
+}
+
+func cleanWebappStatic() error {
+	// Just a simple heuristic to avoid deleting things like "/" or "C:\"
+	if len(webStatic) < 4 {
+		panic(fmt.Sprintf("webStatic path is too short, I don't trust it: %q", webStatic))
+	}
+
+	if err := sh.Rm(webStatic); err != nil {
+		return fmt.Errorf("unable to remove old web static dir %q: %w", webStatic, err)
+	}
+	if err := os.MkdirAll(webStatic, os.ModePerm); err != nil {
+		return fmt.Errorf("unable to create web static dir %q: %w", webStatic, err)
+	}
+
+	// Make sure there is at least something to embed by Go, or it may cause some
+	// errors. This is done in the 'clean' function so that the Go code can be
+	// built before building the webapp.
+	emptyfile := filepath.Join(webStatic, "emptyfile")
+	if err := os.WriteFile(emptyfile, []byte{}, os.ModePerm); err != nil {
+		return err
+	}
+	return nil
+}
+
+func rm(path ...string) error {
+	for _, p := range path {
+		if err := sh.Rm(p); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/magefiles/devserver.go b/magefiles/devserver.go
new file mode 100644
index 00000000..d63c1478
--- /dev/null
+++ b/magefiles/devserver.go
@@ -0,0 +1,13 @@
+//go:build mage
+
+package main
+
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import (
+	"github.com/magefile/mage/sh"
+)
+
+func DevServerWebapp() error {
+	return sh.RunV("yarn", "--cwd", "web/app", "run", "dev", "--host")
+}
diff --git a/magefiles/generate.go b/magefiles/generate.go
new file mode 100644
index 00000000..11d8cacd
--- /dev/null
+++ b/magefiles/generate.go
@@ -0,0 +1,172 @@
+//go:build mage
+
+package main
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"runtime"
+	"strings"
+
+	"github.com/magefile/mage/mg"
+	"github.com/magefile/mage/sh"
+)
+
+// Generate code (OpenAPI and test mocks)
+func Generate() {
+	mg.Deps(GenerateGo, GeneratePy, GenerateJS)
+}
+
+// Generate Go code for Flamenco Manager and Worker
+func GenerateGo(ctx context.Context) error {
+	r := NewRunner(ctx)
+	r.Run(mg.GoCmd(), "generate", "./pkg/api/...")
+	r.Run(mg.GoCmd(), "generate", "./internal/...")
+	if err := r.Wait(); err != nil {
+		return err
+	}
+
+	// The generators always produce UNIX line-ends. This creates false file
+	// modifications with Git. Convert them to DOS line-ends to avoid this.
+	if runtime.GOOS == "windows" {
+		unix2dosModifiedFiles(".gen.go$")
+	}
+	return nil
+}
+
+// Generate Python code for the add-on
+func GeneratePy() error {
+	// The generator doesn't consistently overwrite existing files, nor does it
+	// remove no-longer-generated files.
+	sh.Rm("addon/flamenco/manager")
+
+	// See https://openapi-generator.tech/docs/generators/python for the options.
+	err := sh.Run("java",
+		"-jar", "addon/openapi-generator-cli.jar",
+		"generate",
+		"-i", "pkg/api/flamenco-openapi.yaml",
+		"-g", "python",
+		"-o", "addon/",
+		"--package-name", "flamenco.manager",
+		"--http-user-agent", fmt.Sprintf("Flamenco/%s (Blender add-on)", version),
+		"-p", "generateSourceCodeOnly=true",
+		"-p", "projectName=Flamenco",
+		"-p", fmt.Sprintf("packageVersion=%s", version))
+	if err != nil {
+		return err
+	}
+
+	// The generator outputs files so that we can write our own tests. We don't,
+	// though, so it's better to just remove those placeholders.
+	sh.Rm("addon/flamenco/manager/test")
+
+	// The generators always produce UNIX line-ends. This creates false file
+	// modifications with Git. Convert them to DOS line-ends to avoid this.
+	if runtime.GOOS == "windows" {
+		unix2dosModifiedFiles("addon/flamenco/manager")
+	}
+
+	return nil
+}
+
+// Generate JavaScript code for the webapp
+func GenerateJS() error {
+	const (
+		jsOutDir  = "web/app/src/manager-api"
+		jsTempDir = "web/_tmp-manager-api-javascript"
+	)
+	sh.Rm(jsOutDir)
+	sh.Rm(jsTempDir)
+
+	// See https://openapi-generator.tech/docs/generators/javascript for the options.
+	// Version '0.0.0' is used as NPM doesn't like Git hashes as versions.
+	//
+	// -p modelPropertyNaming=original is needed because otherwise the generator will
+	// use original naming internally, but generate docs with camelCase, and then
+	// things don't work properly.
+	err := sh.Run("java",
+		"-jar", "addon/openapi-generator-cli.jar",
+		"generate",
+		"-i", "pkg/api/flamenco-openapi.yaml",
+		"-g", "javascript",
+		"-o", jsTempDir,
+		"--http-user-agent", fmt.Sprintf("Flamenco/%s / webbrowser", version),
+		"-p", "projectName=flamenco-manager",
+		"-p", "projectVersion=0.0.0",
+		"-p", "apiPackage=manager",
+		"-p", "disallowAdditionalPropertiesIfNotPresent=false",
+		"-p", "usePromises=true",
+		"-p", "moduleName=flamencoManager")
+	if err != nil {
+		return err
+	}
+
+	// Cherry-pick the generated sources, and remove everything else.
+	if err := os.Rename(filepath.Join(jsTempDir, "src"), jsOutDir); err != nil {
+		return err
+	}
+	sh.Rm(jsTempDir)
+
+	if runtime.GOOS == "windows" {
+		unix2dosModifiedFiles(jsOutDir)
+	}
+
+	return nil
+}
+
+// unix2dosModifiedFiles changes line ends in files Git considers modified that match the given pattern.
+func unix2dosModifiedFiles(pattern string) {
+	// Get modified files from Git. Expected lines like:
+	//
+	// 	M pkg/api/openapi_client.gen.go
+	// 	M pkg/api/openapi_server.gen.go
+	// 	M pkg/api/openapi_spec.gen.go
+	// 	M pkg/api/openapi_types.gen.go
+	// ?? magefiles/generate.go
+
+	gitStatus, err := sh.Output("git", "status", "--porcelain")
+	if err != nil {
+		panic(fmt.Sprintf("error running 'git status': %s", err))
+	}
+
+	// Construct a list of modified files that match the pattern.
+	patternRe := regexp.MustCompile(pattern)
+	modified := []string{}
+	for _, line := range strings.Split(gitStatus, "\n") {
+		if line[0:3] != " M " {
+			continue
+		}
+		if !patternRe.MatchString(line[3:]) {
+			continue
+		}
+		modified = append(modified, line[3:])
+	}
+
+	// Run unix2dos on all found files.
+	for _, path := range modified {
+		unix2dos(path)
+	}
+}
+
+func unix2dos(filename string) {
+	if mg.Verbose() {
+		fmt.Printf("unix2dos %s\n", filename)
+	}
+
+	// TODO: rewrite to stream the data instead of reading, copying, and writing
+	// everything.
+	contents, err := os.ReadFile(filename)
+	if err != nil {
+		panic(fmt.Sprintf("error converting UNIX to DOS line ends: %v", err))
+	}
+
+	lines := bytes.Split(contents, []byte("\n"))
+	err = os.WriteFile(filename, bytes.Join(lines, []byte("\r\n")), os.ModePerm)
+	if err != nil {
+		panic(fmt.Sprintf("error writing DOS line ends: %v", err))
+	}
+}
diff --git a/magefiles/install.go b/magefiles/install.go
new file mode 100644
index 00000000..a90cb668
--- /dev/null
+++ b/magefiles/install.go
@@ -0,0 +1,45 @@
+//go:build mage
+
+package main
+
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import (
+	"context"
+
+	"github.com/magefile/mage/mg"
+	"github.com/magefile/mage/sh"
+)
+
+var (
+	generators = []string{
+		"github.com/deepmap/oapi-codegen/cmd/oapi-codegen@v1.9.0",
+		"github.com/golang/mock/mockgen@v1.6.0",
+	}
+)
+
+// Install build-time dependencies: code generators and NodeJS dependencies.
+func InstallDeps() {
+	mg.SerialDeps(InstallGenerators, InstallDepsWebapp)
+}
+
+// Install code generators.
+func InstallGenerators(ctx context.Context) error {
+	r := NewRunner(ctx)
+	for _, pkg := range generators {
+		r.Run(mg.GoCmd(), "install", pkg)
+	}
+	return r.Wait()
+}
+
+// Use Yarn to install the webapp's NodeJS dependencies
+func InstallDepsWebapp() error {
+	env := map[string]string{
+		"MSYS2_ARG_CONV_EXCL": "*",
+	}
+	return sh.RunWithV(env,
+		"yarn",
+		"--cwd", "web/app",
+		"install",
+	)
+}
diff --git a/magefiles/runner.go b/magefiles/runner.go
new file mode 100644
index 00000000..5f02017d
--- /dev/null
+++ b/magefiles/runner.go
@@ -0,0 +1,48 @@
+//go:build mage
+
+package main
+
+import (
+	"context"
+
+	"github.com/magefile/mage/sh"
+	"golang.org/x/sync/errgroup"
+)
+
+// Runner allows running a group of commands sequentially, stopping at the first
+// failure.
+// See https://github.com/magefile/mage/issues/455 for the feature request
+// to include this in Mage.
+type Runner struct {
+	group *errgroup.Group
+	ctx   context.Context
+}
+
+// NewRunner constructs a new runner that's bound to the given context. If the
+// context is done, no new command will be executed. It does NOT abort an
+// already-running command.
+func NewRunner(ctx context.Context) *Runner {
+	group, groupctx := errgroup.WithContext(ctx)
+	group.SetLimit(1)
+
+	return &Runner{
+		group: group,
+		ctx:   groupctx,
+	}
+}
+
+// Run the given command.
+// This only runs a command if no previous command has failed yet.
+func (r *Runner) Run(cmd string, args ...string) {
+	r.group.Go(func() error {
+		if err := r.ctx.Err(); err != nil {
+			return err
+		}
+		return sh.RunV(cmd, args...)
+	})
+}
+
+// Wait for the commands to finish running, and return any error.
+func (r *Runner) Wait() error {
+	return r.group.Wait()
+}
diff --git a/magefiles/version.go b/magefiles/version.go
new file mode 100644
index 00000000..ff5ef66e
--- /dev/null
+++ b/magefiles/version.go
@@ -0,0 +1,33 @@
+//go:build mage
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/magefile/mage/sh"
+)
+
+// To update the version number in all the relevant places, update the VERSION
+// variable below and run `mage update-version`.
+const (
+	version      = "3.6-alpha5"
+	releaseCycle = "alpha"
+)
+
+func gitHash() (string, error) {
+	return sh.Output("git", "rev-parse", "--short", "HEAD")
+}
+
+// Show which version information would be embedded in executables
+func Version() error {
+	fmt.Printf("Package     : %s\n", goPkg)
+	fmt.Printf("Version     : %s\n", version)
+
+	hash, err := gitHash()
+	if err != nil {
+		return err
+	}
+	fmt.Printf("Git Hash    : %s\n", hash)
+	return nil
+}