I might know just bits and pieces - so I can give you what I know-
Civil war in Ottoman Empire is known as Janissary revolt...
There was revolt of Christians in Serbia since 1804., but rebels were fighting against local government that rebelled against Sultan of Turkey. In the beginning of that rebellion Serbs and Turks were allies against local provincial government run by Janissary military administration.-
"In 1804, The dahis had taken power in the Sanjak of Smederevo in defiance of the Sultan and they feared that the Sultan would make use of the Serbs to oust them. To forestall this they decided to execute all prominent nobles thorughout Central Serbia. According to historical sources of the city of Valjevo, heads of the murdered men (following their decapitation) were put on public display in the central square to serve as an example to those who might plot against the rule of the janissaries. The event triggered the start of the Serbian revolution with the First Serbian uprising aimed at putting an end to the 300 years of Ottoman occupation of modern Serbia.
In 1807 a Janissary revolt deposed Sultan Selim III, who had tried to modernize the army along Western European lines" (from Wikipedia)
"The Serbian revolution (1804–1815) marked the beginning of an era of national awakening in the Balkans during the Eastern Question. Suzerainty of Serbia as a hereditary monarchy under its own dynasty was acknowledged de jure in 1830. In 1821, the Greeks declared war on the Sultan." (from Wikipedia)
About the same time Russians started war against Turkey-
"The sixth Russo-Turkish War began in 1806 and ended in 1812 due to Napoleon's invasion of Russia." (Wikipedia)
I know that French army used artillery against Serbian rebels in one occasion, as they were allied with Turks during wars against Russia. But that was just small skirmish.
One should have in mind that Serbia was part of Hapsburg Empire during most of 18th century
and that at the same time large number of colonists were steeled on the Danube river (Batchka, Banat, Transylvania)- most of them being German. Thus, you would find extremely interesting mixture of troops in south-east part of Austrian Empire.
French dominance on Balkans started with destruction of Venezia and Republic of Ragusa - Osprey has a good book on the subject (Men at Arms 410 Napoleon's Balkan Troops).
Ottomans were mixture of troops with even more complex national and military organization.
Well, that is enough...
I can only wish you interesting research.
Keep in mind that in the region was strong presence of German minority (millions of Germans lived there till the WW2), that Muslim Bosnians and Albanians usually fought on Turkish side, that Croatia and its huge Serb minority were rivals of Hungarians, that Italians were majority in Dalmatian cities, that Bulgarians were prominent Russian allies and enemies of Serbs...