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I really lol'ed at that one - stockholm syndrome anyone?

Random returns 32 bits of randomness, why only use 16 of them? In other words, can't you do this with two calls to Random rather than four. Furthermore, Random is a pretty low grade PRNG. Depending on what you intend to use this for, you may want to use a better PRNG.

If you're interested in another alternative, I've started from the root document to make a pure-Delphi version under a permissive license: https://github.com/stijnsanders/tools/blob/master/crypto/aes.pas I also did HMAC and PKDF2 here

Small precision: On Delphi, Random() is pretty basic and low grade. On FPC (which is quoted by the OP), its implementation is much better, and based on proved algorithms.

Maybe it is worthwhile to move the 'crypto' library to a new, separate repository? In a common, large repo it is difficult for anyone to find it

That tutorial is using SQL Lite as an embedded database and is a little different from using something like M$ SQL Server or MySQL where there is another service/process running that you are talking to. That service could be on your computer or on a server were multiple users are talking to it at the same time over a network. You can write SQL commands against them all, but the features and syntax for some functionally changes from database to database and some are not even available. If you want to use SQL Lite you do not need MySQL or M$ SQL Server, you can do everything with FireDAC. I have never used SQL Lite with FireDAC personally. (sometimes I miss the BDE and dbase days, I think I just aged myself) Check this comparison for a sample of just three of the free database out there: https://www.digitalocean.com/community/tutorials/sqlite-vs-mysql-vs-postgresql-a-comparison-of-relational-database-management-systems Also check out: http://docwiki.embarcadero.com/RADStudio/Sydney/en/Using_SQLite_with_FireDAC

Give me patience. NOW!

Oh, please nothing special, just make 10.4.x usable first.

Maybe something special is brewing! If I had to guess maybe it would be RAD WebAssembly

Since there were several questions that this sample doesn't work, I checked myself again. Indeed, it seems to be broken, out-of-the-box. I did the following to get it running: - re-create the project under Rx10.4 - add the Main unit to the project - check the Project/Forms tab, the main form should be auto-created - Removing all unnecessary permissions and entitlements, keeping just Camera permission - For some reason in uMain.pas, this line needed to be added. I have not cxhecked the orginal file again, but maybe there was some non-standard form creation. //21.08.20 added var CameraComponentForm : TCameraComponentForm; - For testing before, I moved the first creation, until the Camera shall be really started. This shouldn't be necessary, but I did that for testing to decouple the actions a little, und keep it in my final. That means you have to press START twice, 1. Get Resolutions, 2. Start camera procedure TCameraComponentForm.FormCreate(Sender: TObject); begin //21.08.20 PermissionsService.RequestPermissions([PermissionCamera], AccessCameraPermissionRequestResult, DisplayRationale); ... procedure TCameraComponentForm.btnStartCameraClick(Sender: TObject); begin //21.08.20 Try get resolutions here at first if cbResolutions.Items.Count = 0 then PermissionsService.RequestPermissions([PermissionCamera], AccessCameraPermissionRequestResult, DisplayRationale) else //only then start the camera with 2nd click PermissionsService.RequestPermissions([PermissionCamera], ActivateCameraPermissionRequestResult, DisplayRationale); end; Et voilâ, camera is working for me. I made some comments already, that I think the non-working samples and demos are a MAJOR SHOWSTOPPER, especially for new customers. If Embarcadero is making a trial, and CE version, they should better take most care that all samples will run out-of-the-box. If new customers trying new tools are a little bit like me, I will DROP the new tools immediately if I cannot get the basic demos and hello worlds running without major quirks. Thats my proof or quality for any software or tool. So its Embarcadero's marketing decision, not mine.