Perfectly alive with aprox 100k daily users

I compile the source code: git clone, cd mldonkey, ./configure, make, make install

Removed by mod

You still have realvnc lite. It is free, 1 user, 3 machines, less features, but the basics still there.

You could use i2p for torrent it is free and secure, but slow

Nope, just an encrypted layer. I2p wiki

It’s just Germany, the rest of Europe (EU and non-EU) doesn’t actively care about them unless it’s cp.

It’s still my favorite network (using it from more 20 years ago), but for the latest things I use bittorrent and seed to both networks (bittorrent and ed2k/kad) through mldonkey 24/7.

Well you could run these services in your server (only if you have enough spare bandwidth, ram and cpu) to help the comunity to circumvent censorship in some countries, like Russia or Iran. Here you have more information for tor and i2pd.

Tor relay (guard/middle or bridge/snowflake) and i2p node (i2p, i2p+ or i2pd)

You could seed on ed2k/kad networks, just share the folder

Then samsung galaxy a35.

Samsung phones nowadays are one of the best software support on every budget, starting with the A15 4G (~150€) with 5 years to the flagship, S24 ultra with 7 years.

Samsung galaxy A15 5G, Cheap phone (~180$), micro-sd, headphone jack, good software support (4 OS updates, 5 years security updates), good battery, 1080p amoled 90Hz 800 nits.

eMule works just fine nowadays with fiber connections.

Maybe you could try ed2k/kad (emule/amule/mldonkey), soulseek or dc++ networks. Just drop the files in the sharing folders and seed. My preference is ed2k/kad.

You could try on ed2k/kad network (emule/amule/mldonkey)

I just use jerboa

Tor bridge/relay and i2p node

Snowflake and i2pd could work but not in the best conditions.

Snowflake/bridge is used when you do not want the authorities/ISP know, you are using tor or because it might be blocked (like on contries with censorship). When you are running snowflake/bridge you are helping these users. For the contrary, if you use a normal tor relay, they(ISP, authorities, who ever is watching your connection) know, but they do not know what you are doing.