Version 1.1 of package Bufferlo has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Bufferlo describes itself as: ============================================= Frame/Tab Local Buffer Lists with Persistence ============================================= More at https://elpa.gnu.org/packages/bufferlo.html ## Summary: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BUFFERLO.EL - FRAME/TAB LOCAL BUFFER LISTS WITH PERSISTENCE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Easy-to-use buffer management and workspace persistence tools for Emacs workflow management. Headbutt your way to productivity and moove ahead with bufferlo. Introduction ════════════ With bufferlo, every frame and tab (i.e., `tab-bar-mode' tab) has an additional manageable local buffer list. A buffer is added to the local buffer list when displayed in the frame/tab (e.g., by opening a new file in the tab or by switching to the buffer from the global buffer list). ## Recent NEWS: [Not provided 🙁]