Btw, the SQL import doesn't seem to work for an sqlite `.schema` dump; it breaks on the PRIMARY KEY here:
CREATE TABLE IF NOT EXISTS "__EFMigrationsHistory" (
"MigrationId" TEXT NOT NULL CONSTRAINT "PK___EFMigrationsHistory" PRIMARY KEY,
"ProductVersion" TEXT NOT NULL
);
(This is the standard migrations table that Entity Framework creates.)W/r/t monetization, you should know there's a really powerful flowchart tool called draw.io that's already free. It's not tailored specifically towards databases the way yours is, but it can make similar graphs, so if you go too hard on monetizing you might cause people to just use that instead. Maybe there are some more B2B-oriented extensions or db integrations, or maybe a team collaboration feature you could add without compromising the core tool.