Login to recommend Obsidian, too.
After several months of usage, I even created a regex plugin to enable me to build knowledge database even faster :
https://github.com/No3371/obsidian-regex-pipeline
- See/Hear some Japanese words I don't understand
- Search it on goo (Japanese dictionary website)
- Clip it with Markdownload (https://github.com/deathau/markdownload)
- Format it with my plugin
- Read the content, weave the backlinks
Keep doing this then I have the super complicated graph in the plugin demo gif you can see.