Informatic

This is just a dump of some interesting undocumented features of webOS (3.8 specifically, on early 2018 4k LG TV) and other development-related tips.

Homebrew app ideas

• OpenVPN frontend (OpenVPN itself is easily buildable and runs on webOS TVs: https://discord.com/channels/407937994037919756/835489130967859251/906943542457401395)
• App autostart manager - dynamically update arbitrary app config and register it as input (see Registering an app as an input)
• webos-vncserver frontend with autostart option
• Package hyperiond into Piccap directly
• Quick Screenshot (expose HTTP port that just returns PNG of current screen contents)
• Custom IR remote codes editor/updater/blaster

marcan

#!/usr/bin/python3
#
# turnitdown.py - normalize Spotify playback volume on Google Cast devices
#
# Dependencies: pychromecast, spotipy
#
# Usage: register a Spotify app and put the credentials in the
# SPOTIPY_CLIENT_ID and SPOTIPY_CLIENT_SECRET environment variables.
# Then just launch the script. It will autodetect all cast devices
# on the network.

acdha

#!/usr/bin/env python3
# encoding: utf-8
"""Use instead of `python3 -m http.server` when you need CORS"""

from http.server import HTTPServer, SimpleHTTPRequestHandler


class CORSRequestHandler(SimpleHTTPRequestHandler):
    def end_headers(self):
        self.send_header('Access-Control-Allow-Origin', '*')

thejhh

Why does deleting a snapshot increase the used space on btrfs filesystem?

# time ./transaction-test.sh
DEBUG   452     work_begin: before snapshot creation
DEBUG   452     snapshot_create: before sync
DEBUG   408     snapshot_create: before snapshot creation
DEBUG   412     snapshot_create: after snapshot creation
DEBUG   412     work_begin: before changing pwd
DEBUG   412     work_begin: after changing pwd
DEBUG 412 do_test: before test