PayloadTooLargeError: request entity too large

[Monokai]

I'm trying to plot an .SVG file of 9MB with lots of tiny paths. Saxi runs on a Raspberry PI with 4GB memory. The path planning phase goes ok, but nothing happens.

I'm running the latest Saxi on Node 18.16 on the PI. Looking in /var/log/syslog I see this:

PayloadTooLargeError: request entity too large
at readStream (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/raw-body/index.js:156:17)
at getRawBody (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/raw-body/index.js:109:12)
at read (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/body-parser/lib/read.js:79:3)
at jsonParser (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/body-parser/lib/types/json.js:135:5)
at Layer.handle [as handle_request] (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/express/lib/router/layer.js:95:5)
at trim_prefix (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/express/lib/router/index.js:328:13)
at /home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/express/lib/router/index.js:286:9
at Function.process_params (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/express/lib/router/index.js:346:12)
at next (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/express/lib/router/index.js:280:10)
at serveStatic (/home/pi/.nvm/versions/node/v18.16.0/lib/node_modules/saxi/node_modules/serve-static/index.js:75:16)

Any ideas?