Quantifies the 16% abandonment rate for popular projects and identifies 'personal usage' and 'maintainer friendliness' as the primary drivers of project survival.
An empirical study of 1,932 popular GitHub projects reveals that 16% (315 projects) were abandoned by their core maintainers, a phenomenon termed Truck Factor Developer Detachment (TFDD). While 41% of these projects eventually survived by attracting new core developers, the recovery process is fragile: 86% of survivals depended on just a single new maintainer stepping in. 64% of survivals occurred within the first year after abandonment, with the probability of recovery dropping significantly thereafter. The research identifies a median 'knowledge halving-time' of just 4 months, making rapid maintainer transition critical. Surveyed maintainers identified 'personal usage of the project' (53%) as the primary motivator for assuming maintenance, while 41% cited the presence of 'friendly and active project members' as the key facilitator for their recruitment.
The study finds that 16% of popular open-source projects fail due to the departure of all key knowledge owners, with only 41% surviving the transition.
sudden project stalling or death due to the loss of a single point of human failure
maintainer concentration is the definitive predictor of project existential risk, far more than simple code activity metrics.
Projects developed by organizations seem to have a higher survival rate... probability of surviving longer than five years is less than 50%.
Risk Guard evaluates technical signals but doesn't explicitly distinguish between 'Individual' and 'Organization' ownership in its survival probability scores.
Risk Guard would be better if it applied a 'Governance Bonus' to projects owned by verified organizations or foundations, reflecting their statistically proven higher survival rate.