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This chapter provides information for understanding the internals of FuguIta and for doing your own development based on FuguIta.
FuguIta is based on OpenBSD, so most of its components are openBSD-related information.
For the specific parts of FuguIta that are different from the official OpenBSD, please refer to List of published documents on the Japan Post top page of this site.
(Please note that some past materials may differ from the current FuguIta.)
FuguIta source code can be found at https://github.com/ykaw/FuguIta.
FuguIta has all writable files in memory, so even if the power is suddenly turned off without performing a shutdown operation, etc., there will be no problem with the file system.
Unless you save files with usbfadm during operation, the system will start up in the same state each time.
Using these characteristics, you can create a dedicated machine (Turn Key System) to run a specific application based on FuguIta.
To build such a system, we use a combination of the techniques described so far;
These detailed procedures can be found on this site Creating a router with Fuguita - Example of making an appliance and Practically used FuguIta to use.
