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YaoiBot

By @libewa

  • 3 Devlogs
  • 3 Total hours

A Mastodon bot that posts Yaoi (boyslove), because the old one is dead.
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@libewa on YaoiBot

47m 32s logged

Over some time, I made a few improvements. The service now no longer runs as root, but as a dynamic user, which allocates a UID and GID at random. I had a few issues in the meantime, because this also automatically enables a lot of hardening functionality, preventing Deno from downloading its dependencies. I overrode the DENO_DIR environment variable and had systemd create a cache directory, and now it works.
Also, the access token is now no longer provided as a string, but inside an encrypted .env file. The dotenv file, however, is not loaded by Deno, but by systemd, which then passes it to the Deno process as usual.
Thanks to @jak2k for a lot of pointers to these systemd features!

@libewa

Over some time, I made a few improvements. The service now no longer runs as root, but as a dynamic user, which allocates a UID and GID at random. I had a few issues in the meantime, because this also automatically enables a lot of hardening functionality, preventing Deno from downloading its dependencies. I overrode the DENO_DIR environment variable and had systemd create a cache directory, and now it works.
Also, the access token is now no longer provided as a string, but inside an encrypted .env file. The dotenv file, however, is not loaded by Deno, but by systemd, which then passes it to the Deno process as usual.
Thanks to @jak2k for a lot of pointers to these systemd features!

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@libewa on YaoiBot

I made a Mastodon bot that posts Yaoi art every hour. I used Deno to build it, and learned how to use the megalodon NPM package.
I first tried to run the bot using the cronjobs feature on Deno Deploy, but that did not work for some reason, so I decided to deploy it on Nest instead. Thus, I also learned how to configure NixOS on Proxmox (and I didn't even get Hackatime credits for this), how to write NixOS modules, and how to package Deno applications for NixOS (you don't).
This was supposed to be a quick entry/starter project for Stardance, and I finished it in a single day (even though I was supposed to be doing other things, for school 🫣).

  • 3 devlogs
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@libewa on YaoiBot

2h 10m 6s logged

It turns out the library hiccups when using a RAM buffer. I now save the files to /tmp, and create a ReadStream, and now it works! The rest of the time was spent writing a Nix flake, which both wraps the package (currently using a shell script, until I figure out how to run deno compile in the offline sandbox), and contains a NixOS module, which creates a systemd timer to run the bot as a oneshot service.

@libewa

It turns out the library hiccups when using a RAM buffer. I now save the files to /tmp, and create a ReadStream, and now it works! The rest of the time was spent writing a Nix flake, which both wraps the package (currently using a shell script, until I figure out how to run deno compile in the offline sandbox), and contains a NixOS module, which creates a systemd timer to run the bot as a oneshot service.

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@libewa on YaoiBot

30m 30s logged

I wrote code that should work™. But for some reason, I get an HTTP error 400, and the stacktrace is of no use, since it is somewhere within the event loop. Also, some time is missing from Hackatime, since it only tracks git repositories.

@libewa

I wrote code that should work™. But for some reason, I get an HTTP error 400, and the stacktrace is of no use, since it is somewhere within the event loop. Also, some time is missing from Hackatime, since it only tracks git repositories.

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