4.6 is now at beta1 which is by far and large usable. I think the 4.6 branch will take some time to stablize as it is moving to the libtorrent 2.x branch (from which I2P support comes). Their most recent 2.0.9 has just fixed some I2P related bugs.
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- You can try creating a torrent with the file(s) you have at hand and try to search with the info hash. You need to be sure the metadata (e.g. name, size, directory stucture, etc.) of the file(s) in question is identical to the original download.
- You can try adding the torrent into a client. Pause it and then copy the file(s) to the download destination. Rename the file(s) accordingly. Ask your client to recheck/rehash the file(s). If the file(s) is/are identical, it will work.
CD Audio came way earlier than mp3.... It is CDDA, Compact Disc Digital Audio. For its spec, please give wiki a read. FLAC is a good lossless alternative to WAV. I have most of my collection in FLAC too.
Quadrupling the daily active user to 1.1-1.2M is so far so good. I don't know how different your story is but that is barely 0.5% that of Twitter still.
If you check the Submarine Cable Map, you can find all the cables we have laid under the sea and their owners. The Mozilla Internet Health Report 2019 contains a map that shows cable ownership by the big 4 aka Google, Microsoft, Meta, and Amazon. The map was updated to contain data till 2021. The L1 is largely owned by the telecom operators, private or national. Cloudflare is just L2 and L3 (maybe some L7).
If you want to unleash the full potential of an all-flash config and be futureproof, better get one that comes with full width M.2, i.e. x4 with at least PCIe gen 4 connectivity. That only leaves you x86 unless you want something really exotic.
You have forgotten Akamai... Google, Microsoft, Meta, and Amazon... Also Equinix and descendants of those once nationalized telephone and telegram operators, e.g. AT&T, BT, NTT, etc.
As far as I know most uploaders prefer software encoding for the best result. Even with the most advanced encoder (e.g. SVT-AV1) and the latest hardware, that becomes a taxing task with AV1.
libgen has IPFS. z-library also has an IPFS mirror. Basically it is no different from other networks, you obtain the identifier, add it to the client, and wait. You can also retrieve the content via web gateways. It may take a few F5 but it will work as long as there is one seeder in the open sea.
Calibre can do the conversion already. You just need to remove the DRM. And there is a Calibre plugin to do that too.
BitTorrent, ed2k/kad, Usenet, IPFS
I use WebStorm from JetBrains at work and at home. It is a very decent IDE with plenty useful plugins.