Split ring timber connectors
One more thing from the dustbin of history: In 1961 the family lumber business built a modest store/showroom, about 20 X 30 or so. The trusses were built on-site using split rings which connected the sides of overlapping 2 X 4 truss chords and webs. Circular grooves were cut in both members and the ring rested half in each and secured by a center through bolt. The ring was split so it could adjust to the wood's changing size due to seasonal moisture level changes. This was constructed by employees when things were slow and has stood the test of time (55+years) and western Massachusetts snow loads.
This may be an option for modest DIY projects at difficult sites using engineered drawings.
Link: Split Ring Timber Connectors - Split Ring Connectors