Hennadii Stepanov

Rebased due to the conflict with the merged bitcoin/bitcoin#31818.

Rebased due to the conflict with the merged bitcoin/bitcoin#31892.

Rebased due to a conflict with the merged bitcoin/bitcoin#30997.

Rebased on top of https://github.com/bitcoin/bitcoin/pull/32324, which addresses https://github.com/bitcoin/bitcoin/pull/31233#discussion_r2026642378, and drafted.

Rebased and undrafted. The PR description has been updated as well. Friendly ping @maflcko and @purpleKarrot :)

> Is this PR still an alternative to #31669. It's related, but I wouldn't consider it an alternative.

Updated the PR title.

My Guix build: ``` aarch64 cc67459424a62c706895f382cff677c1e0c0ecd7ee7f43429d64d1f5d872f151 guix-build-67dc7523f3e1/output/aarch64-linux-gnu/SHA256SUMS.part 3c1eb6f629cc3b00d7e3803fc33383aea1f7cf6646d4de3e5c96d30923a1a795 guix-build-67dc7523f3e1/output/aarch64-linux-gnu/bitcoin-67dc7523f3e1-aarch64-linux-gnu-debug.tar.gz 494c55c6843e0d1f8aa133ee4c7685f06f04ca4c3dcb8ccee02aa11686a64350 guix-build-67dc7523f3e1/output/aarch64-linux-gnu/bitcoin-67dc7523f3e1-aarch64-linux-gnu.tar.gz e12c0167012af21d9b49f2c9593f49eaf75f2f1a9dea30df9b498a75562ac00d guix-build-67dc7523f3e1/output/arm-linux-gnueabihf/SHA256SUMS.part 46c4a276bcb676a853e40d80e40495068333cef6389dec3b8fb324e62633c169 guix-build-67dc7523f3e1/output/arm-linux-gnueabihf/bitcoin-67dc7523f3e1-arm-linux-gnueabihf-debug.tar.gz 31a3fd642a393b91030e2a6ff329091eb9cb8698a954fec335ea8a955bcb4968 guix-build-67dc7523f3e1/output/arm-linux-gnueabihf/bitcoin-67dc7523f3e1-arm-linux-gnueabihf.tar.gz 18c2aec9b8ef2de41e517850782ce6fff47c9a27a208cfa233f957899330d825 guix-build-67dc7523f3e1/output/arm64-apple-darwin/SHA256SUMS.part 93cf0d273ababea20ff1891e5523c34aa49db99fafa700c36d1384f3014b1aa7 guix-build-67dc7523f3e1/output/arm64-apple-darwin/bitcoin-67dc7523f3e1-arm64-apple-darwin-codesigning.tar.gz a96ce467e74222633f9d2dc1ce03f7a71f56545fe9618fc5ccfb26fdbe6bfc0c guix-build-67dc7523f3e1/output/arm64-apple-darwin/bitcoin-67dc7523f3e1-arm64-apple-darwin-unsigned.tar.gz 6bafa4ceee017a00235aeb1af5e470900d0a657d7f16d85f2d65bf84e55099db guix-build-67dc7523f3e1/output/arm64-apple-darwin/bitcoin-67dc7523f3e1-arm64-apple-darwin-unsigned.zip c974c8f7989adbf894b833e32d4441cca8b0edaa317ce851b6f511fe37377b3f guix-build-67dc7523f3e1/output/dist-archive/bitcoin-67dc7523f3e1.tar.gz 87dc02ed9c5b2a3e139afcc73b192dc21c1f9f275f65265c0158e01690aece43 guix-build-67dc7523f3e1/output/powerpc64-linux-gnu/SHA256SUMS.part 88565d48b79941d1932783466620947c042a4f74449b607494a99c4306b1ddd0...

@Sjors > Building depends fails for me, maybe something wrong with `qttools_skip_dependencies.patch`? What's your build platform and the value of the `HOST` variable? UPD. If you build on macOS, does...

@fanquake > It'd be good if [49b0256](https://github.com/bitcoin/bitcoin/commit/49b025636be266fa17cbb4cdb9d541c0e71f2ef8) explained why bumping to 12 is needed, as the Qt 6 supported platforms for Linux claims anything down to GCC 9 should be...