selfdb turns a SQLite database into a runnable ELF binary

fzakaria built selfdb, which stores a compiled program as rows inside a SQLite database, then runs that file as a native Linux binary.

That means a program's logic, its assets, and the data it produces at runtime can share one file that's queryable with plain SQL. It collapses what's normally a database plus a separate binary into one artifact.

It goes further than fzakaria's earlier project, sqlelf, which only exposed an existing ELF binary as queryable SQL tables. selfdb makes the SQLite rows themselves the binary Linux executes.

The project ships elf2self and self2elf converters to move a program in and out of the format. A binfmt interpreter runs .self files directly, with three execution modes, one of which resolves symbols through SQL queries at load time. A separate LD_AUDIT library gets stock glibc to load .self files as ordinary shared libraries, with no patches to the loader.

The demo is a small webserver where the code, the HTML pages, and the visitor log all live in one SQLite file. The program opens that file as argv[0] when it runs.