Free C source code:

dlib.c    - a collection of useful c functions
dcurses.c - a collection of c curses functions
dcalc.c   - an onscreen curses based calculator
ddump.c   - an onscreen curses based hex dump file viewer
dtype.c   - an onscreen curses based file viewer
dr.c      - a curses based directory listing utility

Here's an experimental program for study:
dzip.c    - a file compression program

Arduino attiny85 C source code:

Music out of attiny85 pb0:
music.ino    - Fugue in G Minor, J.S. Bach

This code is made freely available under the terms of the GPL.

NON OMNES QUI HABENT CITHARAM SUNT CITHAROEDI.
Not all who own a harp are harpists.
-Varro

BONUM, VERUM, PULCHRUM.
The good, the true, the beautiful.

(Nous parlons une petit français) § § § (Wir sprechen eine bischen deutsches)

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The webpage content is maintained by hand.   The counter and comment box are done with cgi/perl scripts.   The clocks, pulldown menus, and links are done with javascript.   The font sizes are set with style sheets.  

NULLIUS IN VERBA.
(Rely) on the words of no one.
-Horace

Dear children, let us not love with words or tongue but with actions and in truth.
-1 John 3:18