Add some more potential commands

zig/sdl/hello_sdl.zig

        }
        while (line != null and i * glyph_height < window_height) {
            const line_c = try gpa.dupeZ(u8, line.?);
            // TODO: render tabs at correct width (or some width at least)
            const result_text = c.TTF_RenderUTF8_Shaded(font, line_c, white, black);
            gpa.free(line_c);
            const result_texture = c.SDL_CreateTextureFromSurface(renderer, result_text);
    else if (std.mem.startsWith(u8, cmd, "man "))
        // TODO: handle `man 5 sway`
        &[_][]const u8{ "man", cmd["man ".len..] }
    else if (std.mem.startsWith(u8, cmd, "s "))
        &[_][]const u8{ "ag", cmd["s ".len..], "/home/luna/t/raylib/src", "/home/luna/k/the-thing/resources/ode-build/include" }
    else if (cmd.len > 0 and std.ascii.isDigit(cmd[0]))
        &[_][]const u8{ "/usr/bin/qalc", "-terse", cmd }
        &[_][]const u8{ "qalc", "-terse", cmd }
    else
        &[_][]const u8{ "bash", "-c", cmd };
    for (argv) |arg| {