mastodon.zunda.ninja is one of the many independent Mastodon servers you can use to participate in the fediverse.
Zundon is a single user instance as home of @zundan as well as a test bed for changes of the code.

Administered by:

Server stats:

1
active users

zunda

$ heroku buildpacks:remove heroku/nodejs -a zundan-mastodon-experiment

Deployed the same branch:
:
-----> Ruby app detected
:
-----> Installing node-v6.10.0-linux-x64
-----> Installing yarn-0.22.0
-----> Detecting rake tasks
-----> Preparing app for Rails asset pipeline
Running: rake assets:precompile
yarn install v0.22.0
:
-----> Compressing...
Done: 310.6M

$ heroku run bash -a zundan-mastodon-experiment
~ $ npm start &
[1] 17
~ $ [..................] \ : verb config Skipping project config: /app/.npmrc. (
> mastodon@ start /app
> rimraf ./tmp/streaming && babel ./streaming/index.js --out-dir ./tmp && node ./tmp/streaming/index.js

./streaming/index.js -> tmp/streaming/index.js
info Starting streaming API server master with 7 workers
info Starting worker 1
info Worker 1 now listening on :::40316
info Starting worker 2
info Starting worker 3
:

and the production app with heroku/node buildpack shows similar warnings.