conf 20260506

- Filtered log of core changes:
9f28c13 conf: Print config used when building project
706f4c8 conf: [25ju] disable all dangerous ext4 mount options
95b1d31 conf: [m533ia] disable all dangerous ext4 mount options
021e4c6 conf: [25ju] enable $fstab_ext4_nobarrier
65e161c conf: [m533ia] enable $fstab_ext4_nobarrier
82f3dba conf: Support $fstab_ext4_journal_async_commit
931cd26 conf: Support $fstab_ext4_writeback
e374314 conf: Support $fstab_ext4_commit
ef5d8b7 _perf(): Use bytes to avoid RAM size factor
6bb1bda Revert "_perf(): Use BFQ"
ab8f89b _sway_conf(): Alt+Tab back_and_forth keybind
e8742f5 _perf(): Use BFQ
3b43afb _perf(): Different performance approach

- Complete log between 20260501 and 20260506 (902a919):
902a919 README.md: Indicate `config` recipe is ran as root
87ef53e Makefile: Improve and harden `clean` recipe
9f28c13 conf: Print config used when building project
724fa00 Makefile: Make `config` recipe not exec build
706f4c8 conf: [25ju] disable all dangerous ext4 mount options
95b1d31 conf: [m533ia] disable all dangerous ext4 mount options
021e4c6 conf: [25ju] enable $fstab_ext4_nobarrier
65e161c conf: [m533ia] enable $fstab_ext4_nobarrier
82f3dba conf: Support $fstab_ext4_journal_async_commit
931cd26 conf: Support $fstab_ext4_writeback
e374314 conf: Support $fstab_ext4_commit
ef5d8b7 _perf(): Use bytes to avoid RAM size factor
6bb1bda Revert "_perf(): Use BFQ"
ab8f89b _sway_conf(): Alt+Tab back_and_forth keybind
e8742f5 _perf(): Use BFQ
3b43afb _perf(): Different performance approach
1bfea61 _perf(): [doc] note assumptions